IORC

IORC Web Resources and Review Files

The Illinois Ornithological Records Committee (IORC) has recently made publicly available, via a set of web pages, a variety of information related to its work. They are found at http://geoffwilliamson.info/iorc/. Importantly, a section of these pages regarding documentation of bird records represents a portion of the IORC archives. This archival material includes documentary items sent to IORC (mostly written documentation and physical evidence in the form of photographs, videos, and sound recordings, but also a few other items) plus also the evaluation votes and comments of IORC members. The web pages from 2011 to the present are essentially complete with respect to the documentary materials. With regard to votes and comments of IORC members on records, IORC’s practice now is to provide here all votes and comments going forward; however, these are not now available for all records.

Each year’s listing of records includes for all records the serial number, species or form, county, first and last date of observation, and status of the record. Where this or other information on these web pages differs from that in published IORC reports, the latter represent the official record.

IORC members examine Slate-colored and White-winged Junco specimens at IORC’s February 2020
meeting in the Field Museum of Natural History. Left to right: Bob Hughes, Paul Sweet, Adam Sell,
Doug Stotz, Vida Kalina.

IORC is making all this material web-accessible, and hence readily available, to inform better the birding public about IORC’s work and to facilitate access to at least part of its archives. IORC hopes that this material’s availability will encourage the submission of documentation of rare and unusual birds in Illinois, will help to improve the understanding of the documentation and review process, and will by example help to improve the quality of submitted documentary materials.

Question, suggestions, and corrections may be directed via email to the IORC Secretary, Geoff Williamson, at iorcommittee <at> gmail <dot> com.

Additions to the Official Illinois State List of Birds during 2019

One of the purposes of the Illinois Ornithological Records Committee (IORC), per its bylaws, is “to maintain the official Illinois State List of Birds.” Among the various changes and updates to the list, the most exciting are additions of species. Year 2019 was a banner year in this regard, with the species total growing by five. By comparison, the previous five species additions happened over a five-year long period from 2014 to 2018. Four of the five from 2019 represented species unrecorded in Illinois prior to 2019: Limpkin, Little Stint, Lewis’s Woodpecker, and Cassin’s Kingbird. Three of these were long-staying vagrants, allowing many Illinois birders to travel to see them. Only the kingbird was a one-day wonder. The fifth addition, Barnacle Goose, came from evaluations concluding in 2019 of prior records going back to 1983. The species total for Illinois now rests at 449.

Sneaking under the radar in all this was that 2019 included a State List change event of a rarity on a par with that of adding five new species. A family of birds was newly added to the state list! Limpkin is the sole member of Aramidae, a family within order Gruiformes (which also includes the rails and cranes).

Limpkin by Fran Morel.
Limpkin at Borah Lake, Richland County, 6 Sep 2019. Photo by Fran Morel.

Families are added to the State List very infrequently. The last time was, well, 2017, but that event stemmed from Yellow-breasted Chat being split out from the Wood-Warblers (family Parulidae) into its own family Icteriidae. Yellow-breasted Chats have been present in Illinois for a long time. The four most recent family-level additions to Illinois’s list that were precipitated by a bird being newly recorded in the state were spread over a period of about 60 years.

Here are the six latest family additions to the Illinois list.

  • 2019, family Aramidae (Limpkins): Limpkin
  • [2017, family Icteriidae (Yellow-breasted Chats): Yellow-breasted Chat]
  • 1990, family Muscicapidae (Old World Flycatchers): Northern Wheatear
  • 1986, family Fregatidae (Frigatebirds): Magnificent Frigatebird
  • 1983, family Sulidae (Boobies and Gannets): Northern Gannet
  • 1962, family Alcidae (Auks, Murres, and Puffins): Ancient Murrelet
The last family level addition to the Illinois list stemmed from this Northern Wheatear, 12 Sep 1990 in Coles County. Photo by Greg Schaefer.

On the official Illinois State List of Birds there are now 449 species, 62 families, and 21 orders represented.

Changes to Species Status on the Official List of Birds

At its Annual Meeting on 16 February 2020, the Illinois Ornithological Records Committee (IORC) made adjustments to the definitions of the status codes for species on the official Illinois State List of Birds. IORC also reviewed the status of each species on the state list and made updates as necessary, starting from a set of recommendations assembled by Keith McMullen.

The new definitions for the status codes are as follows. These codes are now uniformly based on the number of records.

  • Regular: Species for which there are at least eight records in the past ten years. This includes species that are very local and those that cannot be located reliably anywhere in the state. Most species in this category are expected within the state annually.
  • Casual: Species for which there are at least six records in the state and three to seven records in the past ten years.
  • Accidental: Species for which there are either less than six records in the state or less than three records in the past ten years.
  • Accidental (provisional): Forms with accepted records, all of which are sight records documented by no more than one observer.
  • Extirpated: Species which were formerly Regular in Illinois but which have not been recorded in the state in the previous 50 years.
  • Extinct: Species which have occurred in the state but no longer exist.

Species for which status category was changed include the following.

  • Black-bellied Whistling-Duck: status changed to Regular from Casual.
  • Gray Partridge: status changed to Accidental from Regular.
  • Ruffed Grouse: status changed to Extirpated from Accidental.
  • Ruff: status changed to Regular from Casual. This species will remain on the Review List.
  • Purple Sandpiper: status changed to Casual from Regular. IORC now requests that sightings of this species from anywhere in Illinois be documented.
  • Long-tailed Jaeger: status changed to Casual from Accidental.
  • Little Gull: status changed to Regular from Casual. This species will remain on the Review List.
  • Neotropic Cormorant: status changed to Regular from Casual. This species will remain on the Review List.
  • Anhinga: status changed to Regular from Accidental. This species will remain on the Review List.
  • Brown Pelican: status changed to Casual from Accidental.
  • White Ibis: status changed to Regular from Casual. This species will remain on the Review List.
  • Fork-tailed Flycatcher: status changed to Accidental from Casual.
  • Common Raven: status changed to Accidental from Extirpated.
  • Rock Wren: status changed to Accidental from Casual.
  • Mountain Bluebird: status changed to Casual from Accidental.
  • Townsend’s Solitaire: status changed to Regular from Casual. This species will remain on the Review List.
  • Sprague’s Pipit: status changed to Accidental from Casual.
  • Evening Grosbeak: status changed to Casual from Regular. This species is now on the Review List.
  • Pine Grosbeak: status changed to Accidental from Casual.
  • White-winged Crossbill: status changed to Casual from Regular. This species is now on the Review List.
  • Bachman’s Sparrow: status changed to Extirpated from Accidental.
  • Golden-crowned Sparrow: status changed to Casual from Accidental.

IORC Update, 19 February 2020: Records Reviewed

The Illinois Ornithological Records Committee (IORC) recently concluded evaluations of 40 records of the occurrence of rare birds in Illinois and occurrence of regularly occurring species at unusual times. Among these, IORC accepted 39 of the records while not accepting one. Among the accepted records were the following additions to the list of species having occurred in Illinois: Limpkin, Little Stint, and Cassin’s Kingbird.

The records involved are summarized below. For each record, we indicate the species or form, with number of individuals in parentheses if greater than one, followed by date or date range, location, and county. The record number is indicated in parentheses, followed by, for accepted records, names of the documenters. If multiple documenters are listed, those understood by IORC to have been the original finders of the bird(s) are listed first and separated from the others by a semicolon. IORC thanks all the documenters, for accepted and unaccepted records alike, for their submissions. All documentation is maintained in the IORC archives so that there is a permanent record of all these observations. Documentation, regardless of the Committee’s decision, is a valuable part of the record of bird life in Illinois.

Records Accepted

  • Black-bellied Whistling-Duck (34), 9 May to 28 June 2019 in Granite City, Madison County (2019-028; Frank Holmes)
  • Black-bellied Whistling-Duck (2), 16 June 2019 northeast of Meredosia, Morgan County (2019-021; Colin Dobson)
  • Black-bellied Whistling-Duck (28), 28-29 June 2019 in Grand Tower, Jackson County (2019-24; Rhonda Rothrock, Trevor Slovik)
  • Black-bellied Whistling-Duck (19), 17 August 2019 in Grand Tower, Jackson County (2019-037; Dan Wylie)
  • Fulvous Whistling-Duck, 6-27 August 2019 along the Big Muddy River levee at Island Road, Jackson County (2019-035; Don Mullison; Rhonda Rothrock, Dan Williams)
  • Fulvous Whistling-Duck (23), 13 September to 5 October 2019 adjacent to Mississippi River levee roads near Merrimac, Monroe County (2019-046; Wally George; Travis Mahan, Geoffrey A. Williamson)
  • Harlequin Duck, 21-30 December 2017 at Carlyle Lake, Clinton County (2017-081; Keith McMullen, Al Smith)
  • White-winged Dove, 2 May 2019 in Skokie, Cook County (2019-020; Amanda Tichacek)
  • White-winged Dove, 23 August 2019 at Two Rivers National Wildlife Refuge, Calhoun County (2019-039; Bill Rowe)
  • Limpkin, 20 June to 7 November 2019 at Borah Lake, Olney, Richland County (2019-043; Brady Colin, Tom Colin, Matthew Cvetas, Fran Morel, Bob Shelby, Craig Taylor, Geoffrey A. Williamson)
  • Ruff, 20 April 2018 at Canteen Lake, Madison County (2018-064; David Becher; Al Smith)
  • Curlew Sandpiper, 20 May 2000 at Rend Lake, Jefferson County (2000-085; Brian L. Chandler)
  • Little Stint, 3-7 August 2019 at the Emiquon Preserve, Fulton County (2019-032; Keith McMullen; Steve Freed, Davida Kalina, Geoffrey A. Williamson)
  • Parasitic Jaeger, 16 September 2017 at Carlyle Lake, Clinton County (2017-082; Al Smith)
  • Little Gull, 24-26 February 2019 at Carlyle Lake, Clinton County (2019-027; Dan Kassebaum)
  • Great Black-backed Gull, 24 July 2019 south of Beall Woods State Park, Wabash County (2019-029; Leroy Harrison, Bob Shelby)
  • Neotropic Cormorant, 27 June to 15 July 2013 at Dixon Waterfowl Refuge, Putnam County (2013-082; Benjamin Murphy, Jeff Smith)
  • Anhinga, 8-13 July 2019 at Cache River State Natural Area, Johnson County (2019-026; Keith McMullen)
  • Brown Pelican, 5 May 2018 at the Mt. Pulaski water treatment plant, Logan County (2018-070; Lara Borgerson)
  • Brown Pelican, 18 August to 14 October 2018 at Carlyle Lake, Bond, Clinton, and Fayette counties (2018-065; Roger Hayes, Keith McMullen)
  • Black Vulture, 1 May 2018 in Kankakee, Kankakee County (2018-068; Jed Hertz)
  • Black Vulture, 17 July 2019 in Streator, LaSalle County (2019-034; Steven R. Wargo)
  • Swallow-tailed Kite, 27 July 2019 near Rosecrans, Lake County (2019-030; Patricia Isaacson)
  • Swallow-tailed Kite, 17 August 2019 in Thebes, Alexander County (2019-036; Steven Huggins)
  • Swallow-tailed Kite, 22 August 2019 at Silver Creek Conservation Area, McHenry County (2019-042; Jeff Aufmann)
  • Swallow-tailed Kite, 23 August 2019 north of Livingston, Madison County and during 1-16 September 2019 near Alton, Madison County (2019-040; Keith McMullen; David Becher, Frank Holmes, Devin Peipert, Kimberly Rohling)
  • Swainson’s Hawk, 2 May 2019 in Hudson, McLean County (2019-038; Dan Williams)
  • Gyrfalcon, 13 February 2017 in Lawndale Township, McLean County (2017-083; Tim Lindenbaum)
  • Cassin’s Kingbird, 22 September 2019 at Montrose Point, Lincoln Park, Chicago, Cook County (2019-048; Krzysztof Kurylowicz; Vinod Babu, Robert D. Hughes, Steven Mlodinow)
  • Say’s Phoebe, 8 September 2019 at Greene Valley Forest Preserve, DuPage County (2019-044; Urs Geiser, Bonnie Graham)
  • Sage Thrasher, 29 September 2012 at Sand Bluff Bird Observatory, Winnebago County (2012-058; John Longhenry, Steve Reischel)
  • Great-tailed Grackle, 5-6 August 2018 at Spring Bluff Forest Preserve, Lake County (2018-066; Joan Campbell, Bonnie Graham)
  • MacGillivray’s Warbler, 3 May 2019 in Savanna, Carroll County (2019-047; Ethan Brown)
  • Yellow-rumped Warbler (Audubon’s), 14 June 2019 at Illinois Beach State Park, Lake County (2019-031; Beau Schaefer)
  • Black-throated Gray Warbler, 4 May 2019 east-southeast of Tisilkwa, Bureau County (2019-066; Douglas F. Stotz)
  • Townsend’s Warbler, 15-17 September 2019 at Montrose Point, Lincoln Park, Chicago, Cook County (2019-045; Alison Newberry; Matthew Cvetas, Colin Dobson, Scott Judd, Geoffrey A. Williamson)
  • Western Tanager, 9-13 May 2019 in Normal, McLean County (2019-025; Michael McKinley, Benjamin Murphy)
  • Western Tanager, 21 September 2019 in River Forest, Cook County (2019-049; Jill S. Anderson)
  • Painted Bunting, 2-12 June 2019 at Midewin National Tallgrass Prairie, Will County (2019-023; Jeff Smith; Jared Gorrell, Davida Kalina, Vince Moxon)

Records Not Accepted

  • Townsend’s Warbler, 22 May 1970 at Prairie Park in DeKalb County (1970-001)

IORC Update, 4 December 2019

The Illinois Ornithological Records Committee (IORC) recently concluded evaluations of 29 records of the occurrence of rare birds in Illinois and occurrence of regularly occurring species at unusual times. Among these, IORC accepted 22 of the records while not accepting seven. Among the accepted records was an addition to the list of species having occurred in Illinois: Lewis’s Woodpecker.

The records involved are summarized below. For each record, we indicate the species or form, with number of individuals in parentheses if greater than one, followed by date or date range, location, and county. The record number is indicated in parentheses, followed by, for accepted records, names of the documenters. If multiple documenters are listed, those understood by IORC to have been the original finders of the bird(s) are listed first and separated from the others by a semicolon. IORC thanks all the documenters, for accepted and unaccepted records alike, for their submissions. All documentation is maintained in the IORC archives so that there is a permanent record of all these observations. Documentation, regardless of the Committee’s decision, is a valuable part of the record of bird life in Illinois.

Records Accepted

  • Black-bellied Whistling-Duck (2), 30 May 2019 in Naples, Scott County (2019-019; Colin Dobson)
  • Barnacle Goose, 1-30 January 1983 in Durand, Winnebago County (1983-003; James Landing, Dan Williams)
  • Barnacle Goose, 16-19 December 2017 in Towanda, McLean County (2017-064; Oliver Burrus, Davida Kalina)
  • White-winged Dove, 17 April 2019 in Kankakee, Kankakee County (2019-010; Gary Soper)
  • White-winged Dove, 13-14 May 2019 in Seward, Winnebago County (2019-014; Dan Williams)
  • Snowy Plover, 25 May 2019 at Montrose Point, Lincoln Park, Chicago, Cook County (2019-018; Eddie Kasper; Isoo O’Brien)
  • Long-billed Curlew, 13 April 2019 at Montrose Point, Lincoln Park, Chicago, Cook County (2019-005; Scott Latimer, Amanda Tichacek; Robert D. Hughes, Fran R. Morel, Luis G. Munoz)
  • Pomarine Jaeger, 16-18 July 1986 at Carlyle Lake, Clinton County (2016-106; Dan Kassebaum)
  • Parasitic Jaeger, 11-29 September 2010 at Carlyle Lake, Clinton County (2010-032; Dan Kassebaum)
  • Parasitic Jaeger (2), 3-7 September 2013 at Carlyle Lake, Clinton County (with one of these also present during 1-2 September 2013) (2013-050; Dan Kassebaum)
  • Little Gull, 8 September 2018 at Montrose Point, Lincoln Park, Chicago, Cook County (2018-062; George Dubenic)
  • Anhinga, 27 May 2019 at Oakwood Bottoms, Jackson County (2019-015; Dan Kassebaum)
  • Black Vulture, 9 April 2019 in Lincoln Park, Chicago, Cook County (2019-004; Geoffrey A. Williamson; Tamima Itani)
  • Swallow-tailed Kite, 15 April 2019 in St. Charles, Kane County (2019-006; Leslie Yoshitani)
  • Barn Owl, 1-11 March 2019 at Nipper Wildlife Sanctuary, Sangamon County (2019-011; Colin Dobson)
  • Barn Owl, found dead on 28 April 2019 south of Pesotum, Champaign County (2019-012; Tyler Funk)
  • Lewis’s Woodpecker, 30 April to 5 May 2019 at Ballard Nature Center, Altamont, Effingham County, first state record (2019-007; Tom Colin, Leroy Harrison, Bob Shelby, Dan Williams, Geoffrey A. Williamson)
  • Say’s Phoebe, 24 May to 5 August 2019 north of Weldon, DeWitt County; this record involved the Say’s Phoebe nesting with an Eastern Phoebe, with the nest producing young (2019-017; Tom Colin, Davida Kalina, Dan Williams)
  • Western Tanager, 4-5 May 2019 in Mode, Shelby County (2019-008; Leroy Harrison, Bob Shelby)
  • Swainson’s Warbler, 10 May 2019 at Sexton Creek wetlands, Alexander County (2019-013; Allen Gathman)
  • Kirtland’s Warbler, 9-15 May 2019 at Grant Park, Chicago, Cook County (2019-009; Geoffrey A. Williamson)
  • Painted Bunting, 13 May to 15 June 2019 in East St. Louis, St. Clair County (2019-016; Dan Kassebaum)

Records Not Accepted

  • Long-billed Curlew, 15 May 1943 at Jackson Park, Chicago, Cook County (1943-001)
  • Parasitic Jaeger, 4 November 2017 at Carlyle Lake, Clinton County (2017-080)
  • Parasitic Jaeger, 8 September 2018 at Waukegan, Lake County (2018-048)
  • Swallow-tailed Kite, 22 April 2018 in Greeneville, Bond County (2018-030)
  • Townsend’s Solitaire, 26 December 2018, Edwards Conservation Area, Boone County (2018-061)
  • Pine Grosbeak, 5 May 2018 in Elizabeth, Jo Daviess County (2018-063)
  • White-winged Junco (Junco hyemalis aikeni), 20 October 2018 at Sand Bluff Bird Observatory, Winnebago County (2018-050)



Barnacle Goose Added to the Illinois State List

Recent decisions by the Illinois Ornithological Records Committee (IORC) resulted in the addition of Barnacle Goose as the 445th species on the official Illinois State List of birds. The record that added Barnacle Goose to the list involved the bird found by Andrew Aldrich on 27 November 2012 in Oswego, Kendall County and subsequently seen through 16 December 2012 at various Kane County, Kendall County, and Will County locations.  For any record to accepted by IORC, six or seven of the Voting Members of the committee must vote positively. This case merited six positive votes, with one dissenting vote cast on the basis of origin.

The set of records recently evaluated by IORC included seven involving Barnacle Goose. Because the question of origin in addition to that of identification arises in cases of Barnacle Geese, and because potential first state records attract extra scrutiny, the documentation of each of these seven observations needed to be particularly strong to garner acceptance. Three of the records did not make the cut, one on the basis of identification and the other two on the basis of origin. Three records will be circulated within IORC for a second round of review. (Records can go through as many as four rounds of review before reaching a final disposition.) The Kane/Kendall/Will County record from 2012 was the only one of the seven to gain acceptance in the first round.

Barnacle Goose in Kendall County, 28 Nov 2012.
Photograph by Andrew Aldrich.

Photographic evidence included in the accepted record made clear the bird’s identification as a Barnacle Goose. In comments accompanying their votes, IORC Members cited a variety of factors that supported the bird being a wild vagrant individual. These factors included the dates of occurrence, the documentation including evidence of the individual traveling with a flock and evidence of the species mix of that flock, and the documentation making a compelling case that the goose showed no signs of prior captivity.

There are 23 instances of Barnacle Goose in Illinois that have been cited in the literature, appeared in eBird checklists, or for which evidence potentially allowing review is otherwise available. The seven records recently considered by IORC are among these. IORC previously evaluated two of the other records; questions of origin resulted in neither of these being accepted.

 

IORC Update, 3 July 2019

The Illinois Ornithological Records Committee (IORC) recently concluded evaluations of 25 records of the occurrence of rare birds in Illinois and occurrence of regularly occurring species at unusual times. Among these, IORC accepted 16 of the records while not accepting nine. The records involved are summarized below. For each record, we indicate the species or form, with number of individuals in parentheses if greater than one, followed by date or date range, location, and county. The record number is indicated in parentheses, followed by, for accepted records, names of the documenters. If multiple documenters are listed, those understood by IORC to have been the original finders of the bird(s) are listed first and separated from the others by a semicolon. IORC thanks all the documenters, for accepted and unaccepted records alike, for their submissions. All documentation is maintained in the IORC archives so that there is a permanent record of all these observations. Documentation, regardless of the Committee’s decision, is a valuable part of the record of bird life in Illinois.

Records Accepted

  • Barnacle Goose, 27 November to 16 December 2012, various locations in Kane, Kendall, and Will counties (2012-057; Andrew Aldrich)
  • White-winged Dove, 10 November 2018, Ft. Sheridan Forest Preserve, Lake County (2018-053; Steve Huggins; Tom Lally, Adam Sell)
  • Parasitic Jaeger, 2 September 2018, Waukegan, Lake County (2018-046; Randy Schietzelt)
  • Slaty-backed Gull, 16 February 2019, Chicago, Cook County (2019-001; Walter Marcisz; Jayne Leone, Michael McNamee)
  • Neotropic Cormorant, 16-17 September 2018, Rainbow Park and Beach, Chicago, Cook County (2018-047; Jake Cvetas, Matthew Cvetas)
  • Swallow-tailed Kite, 27 July 2017, Simpson, Pope County (2017-030; Catherine Hammersley)
  • Barn Owl, 23 November 2018, Burnham Park, Chicago, Cook County (2018-055; Andrew Aldrich; Jake Cvetas, Matthew Cvetas)
  • Snowy Owl, 5-25 July 2018, O’Hare International Airport, Chicago, Cook County (2018-051; David B. Johnson, Greg Martinelli, Sharon Scully)
  • Prairie Falcon, 21 Octoer 2018 to 11 March 2019, southeast of Arcola, Coles County (2018-059; Tyler Funk)
  • Vermilian Flycatcher, 29 September 2018, near Sangchris Lake, Christian County (2018-049; Brady Colin)
  • White-eyed Vireo, 29 December 2018, Sun River Terrace, Kankakee County (2018-057; Bronson Ratcliff)
  • Blue-gray Gnatcatcher, 15 March 2019, Mermet Lake, Massac County (2019-003; Allen Gathman)
  • Townsend’s Solitaire, 10 November 2018, Rosehill Cemetery, Chicago, Cook County (2018-052; Andrew Aldrich)
  • Varied Thrush, 18-19 November 2018, Big Rock, Kane County (2018-054; John Heneghan)
  • Nashville Warbler, 29 December 2018, Zander Woods Forest Preserve, Cook County (2018-058; James Phillips)
  • Black-throated Gray Warbler, 30 December 2018, Jake Wolf Memorial Fish Hatchery, Mason County (2018-056; Vicky Sroczynski)

Records Not Accepted

  • Barnacle Goose, 19 January 2011, Troy, Madison County (2011-039)
  • Barnacle Goose (3), 5 October 2015, north of Aledo, Mercer County (2015-038)
  • Barnacle Goose, 25 February 2018, Forsyth, Macon County (2018-011)
  • Pacific Loon, 2 November 2018, Peoria Lake, Tazewell County (2018-060)
  • Anhinga, 15 April 2017, Ft. Massac State Park, Massac County (2017-066)
  • White-faced Ibis, 21-22 October 2017, Hegewisch Marsh, Chicago, Cook County (2017-051)
  • Cassin’s Vireo, 31 August to 1 September 2000, Springfield, Sangamon County (2000-083)
  • Townsend’s Solitaire, 23 May 2018, Somme Wood Forest Preserve, Cook County (2018-019)
  • Black-headed Grosbeak, 9 October 2017, north of Springfield, Sangamon County (2017-079)

IORC Update, 9 March 2019

The Illinois Ornithological Records Committee (IORC) in the last part of 2018 concluded evaluations of 36 records of occurrence of rare birds in Illinois and one notable breeding record. Among these, IORC accepted the breeding record and 29 other records while not accepting seven. The records involved are summarized below. For each record, we indicate the species or form, with number of individuals in parentheses if greater than one, followed by date or date range, location, and county. The record number is indicated in parentheses, followed by, for accepted records, names of the documenters. If multiple documenters are listed, those understood by IORC to have been the original finders of the bird(s) are listed first and separated from the others by a semicolon. IORC thanks all the documenters, for accepted and unaccepted records alike, for their submissions. All documentation is maintained in the IORC archives so that there is a permanent record of all these observations. Documentation, regardless of the Committee’s decision, is a valuable part of the record of bird life in Illinois.

Records Accepted

  • Black-bellied Whistling-Duck (2), 5 May 2018, Canton, Fulton County (2018-031; Michael McKinley)
  • Tufted Duck, 20-21 April 2018, Spunky Bottoms, Brown County (2018-035; Benjamin Murphy, Craig Taylor)
  • White-winged Dove, 5 May 2018, Chicago, Cook County (2018-022; Steven J. Huggins)
  • White-winged Dove, 25 April 2018, Clinton County (2018-027; Dan Kassebaum)
  • Black Rail, 16 June 2018, Orland Grassland South Forest Preserve, Cook County (2018-043; Cary Hillegonds; Nancy Buis, Jayne Leone, Michael McNamee)
  • Parasitic Jaeger, 1 September 2017, Montrose Point in Chicago’s Lincoln Park, Cook County (2017-078; Matthew Cvetas, Larry Krutulis)
  • Long-tailed Jaeger, 8 September 2018, Gillson Park, Wilmette, Cook County (2018-044; Matthew Cvetas; Josh Engel, Fran Morel)
  • Long-tailed Jaeger, 8 September 2018, Montrose Point in Chicago’s Lincoln Park, Cook County (2018-045; Andrew Aldrich; Terry Walsh)
  • Little Gull, 10-14 April 2018, Lake Springfield, Sangamon County (2018-033; Craig Taylor)
  • Neotropic Cormorant, 23-26 May 2018, Carlyle Lake, Clinton County (2018-028; Dan Kassebaum)
  • Neotropic Cormorant, 2 June to 12 July 2018, Horseshoe Lake, Madison County (2018-025; Dan Kassebaum; Frank Holmes)
  • Neotropic Cormorant, 10 July to 17 August 2018, Roselle, DuPage County (2018-040; Urs Geiser)
  • Anhinga (4+), 21 June to 30 August 2018, Cache River State Natural Area, Johnson County (2018-036; Kimberly Rohling; John Schwegman, Craig Taylor)
  • Brown Pelican, 27-29 April 2018, East Fork Lake, Richland County (2018-021; C. Leroy Harrison; Keith McMullen)
  • Brown Pelican, 1 July 2018, Newton Lake, Jasper County (2018-037; C. Leroy Harrison, Robert E. Shelby)
  • White Ibis, 11-23 July 2018, Kaskaskia Island, Randolph County (2018-039; Craig Taylor)
  • Roseate Spoonbill, 19 July to 20 August 2018, Rend Lake, Jefferson County (2018-042; Craig Taylor)
  • Black Vulture, 28-30 November 2017, Congerville, Woodford County (2017-077; Craig Taylor)
  • Black Vulture, 14 July 2018, Sam Dale Lake Conservation Area, Wayne County (2018-038; Robert E. Shelby)
  • Barn Owl, 7-8 June 2018, Montrose Point in Chicago’s Lincoln Park, Cook County (2018-024; Robert D. Hughes)
  • Snowy Owl, 31 May to 6 June 2018, near Manhattan and Homer Glen, Will County (2018-023; Cindy Alberico, Lois Teerling)
  • Northern Saw-whet Owl, breeding record, 2 July 2013, Hoffman Estates, Cook County (2013-081; Dawn Keller, Eric Lundquist)
  • Ash-throated Flycatcher, 4 September 1994, Jackson Park, Chicago, Cook County (1994-037; Paul R. Clyne)
  • Plumbeous Vireo, 30 April 1990, Jackson Park, Chicago, Cook County (1990-025; Thomas S. Schulenberg)
  • Mountain Bluebird, 8-10 April 2018, Spoon Lake, Knox County (2018-034; D. James Mountjoy, Craig Taylor)
  • Hoary Redpoll,  20-28 January 2018, Chicago Botanic Gardens, Glencoe, Cook County (2018-002; Jeff Bilsky, Tom Lally, Scott Latimer)
  • Swainson’s Warbler, 28 May to 17 June 2011, Thebes, Alexander County (2011-038; Keith McMullen, Rhonda Rothrock)
  • Yellow Palm Warbler (Setophaga palmarum hypochrysea), 6 November 2017, Lincoln Park, Chicago, Cook County (2017-058; Luis Muñoz)
  • Western Tanager, 10-12 April 2018, Springfield, Sangamon County (2018-020; Keith McMullen)
  • Painted Bunting, 6 May to 2 Jun 2018, East St. Louis, Madison County (2018-029; Dan Kassebaum)

Records Not Accepted

  • Black-bellied Whistling-Duck, 10 May 2018, Henry de Tonty Woods Forest Preserve, Willow Springs, Cook County (2018-032)
  • Mottled Duck, 26 August 2017, Rend Lake Wildlife Management Area, Jefferson County (2017-067)
  • Mottled Duck, 23-30 March 2018, Carlyle Lake, Clinton County (2018-026)
  • Black Rail, 29 November 2017, Pembroke Savanna Nature Preserve, Hopkins Park, Kankakee County (2017-071)
  • Neotropic Cormorant (2), 17 August 2018, Hidden Lake Forest Preserve, DuPage County (2018-041)
  • Cassin’s Vireo, 18 May 2000, Waterfall Glen Forest Preserve, DuPage County (2000-084)
  • Cassin’s Vireo, 12 July 2002, Waterfall Glen Forest Preserve, DuPage County (2002-052)

Three New Species Added to the Illinois State List

Decisions by the Illinois Ornithological Records Committee (IORC) during the first half of 2018 have added three species to the Illinois State List of Birds: Red-naped Sapsucker, Cassin’s Vireo, and Plumbeous Vireo.

The Red-naped Sapsucker record pertains to an individual during 5-6 April 2012 at Wadsworth Wetlands Forest Preserve, Lake County, found and documented by Paul Sweet.

Red-naped Sapsucker, 6 April 2012. Photo by Paul Sweet

The problematic nature of sapsucker identification, complicated by hybridization between sapsucker species, made the evaluation of this record proceed at a deliberate pace.

IORC added Cassin’s Vireo to the state list on the basis of a sight record from 3-5 May 1994 in Chicago’s Jackson Park (Cook County). Paul R. Clyne observed and documented this bird. Details regarding this sighting were published in an article by Paul in Meadowlark, vol. 3, no. 4, pp. 141-142, but the record never underwent formal review by IORC until this year. Paul’s observation was during 1994; the split of Solitary Vireo into Cassin’s Vireo, Blue-headed Vireo, and Plumbeous Vireo by the American Ornithologists’ Union took place in 1997.

The third new species also stems from a species involved in the split of Solitary Vireo. Jon Grainger discovered and photographed a Plumbeous Vireo 2 May 2018 in Bolingbrook, Will County. Jon’s excellent series of photographs clinched the addition of the third and final member of the Solitary Vireo complex to Illinois’s state list. There are few records of Plumbeous Vireo from eastern portion of the United States.

Plumbeous Vireo, 2 May 2018 in Bolingbrook, Will County. Photo by Jon Grainger.

IORC Update – 31 May 2018

The Illinois Ornithological Records Committee (IORC) in late January concluded evaluations of 27 records of occurrence of rare birds in Illinois, and more recently concluded evaluation of another four records. Among these, IORC accepted 27 records while not accepting five. One record within the later group was accepted as pertaining to a species pair. Two of the accepted records are first state records for the species involved. The records involved are summarized below. For each record, we indicate the species or form, with number of individuals in parentheses if greater than one, followed by date or date range, location, and county. The record number is indicated in parentheses, followed by, for accepted records, names of the documenters. If multiple documenters are listed, those understood by IORC to have been the original finders of the bird(s) are listed first and separated from the others by a semicolon. IORC thanks all the documenters, for accepted and unaccepted records alike, for their submissions. All documentation is maintained in the IORC archives so that there is a permanent record of all these observations. Documentation, regardless of the Committee’s decision, is a valuable part of the record of bird life in Illinois.

Records Accepted

  • White-winged Dove, 17 April 2017, Le Roy, McLean County (2017-039; Joe Phipps)
  • White-winged Dove, 1 November 2017, Montrose Point in Chicago’s Lincoln Park, Cook County (2017-055; Fran Morel)
  • Broad-billed Hummingbird, 11-13 September 2017, Sherman, Sangamon County (2017-037; Pam Stanko; H. David Bohlen)
  • Parasitic Jaeger, 31 August 2017, Montrose Point in Chicago’s Lincoln Park, Cook County (2017-036; Luis Muñoz)
  • Parasitic Jaeger, 15-17 September 2017, Lake Shelbyville, Moultrie County (2017-041; Travis Mahan; Ron Bradley)
  • Pacific Loon, 13 November 2017, Crab Orchard National Wildlife Refuge, Williamson County (2017-059; Don Mullison)
  • Pacific Loon, 4-5 November 2017, Emiquon Preserve, Fulton County (2017-049; Michael Ingram; Andy Gilbert, Joseph Phipps)
  • Neotropic Cormorant, 24 April to 6 June 2017, Lake Springfield, Sangamon County (2017-044; H. David Bohlen)
  • Neotropic Cormorant, 1-24 July 2017, Roselle, DuPage County (2017-042; Andrew Aldrich, Urs Geiser, Craig Taylor, Jim Tezak)
  • Neotropic Cormorant, 9-18 July 2017, North Aurora, Kane County (2017-038; Andrew Aldrich, Urs Geiser, Jason Newton, Jim Tezak)
  • Neotropic Cormorant, 14 July 2017, Grand Tower, Jackson County (2017-046; Rhonda Rothrock)
  • Neotropic Cormorant, 15 September 2017, Rainbow Beach in Chicago, Cook County (2017-047; Andrew Aldrich; Matthew Cvetas)
  • Anhinga, 21 August 2017, Cache River State Wildlife Area, Johnson County (2017-062; Ryne Rutherford)
  • Anhinga (2), 10 October 2017, Greene Valley Forest Preserve, DuPage County (2017-053; Bob Fisher)
  • White-faced Ibis (6 to 9), 28 September to 29 October 2017, Glacial Park, McHenry County (2017-050; Donnie Dann, Cheryl Kreiman, Joe Lill, Marilyn Palmer, Yan-yi Peng, Dan Williams)
  • White-faced Ibis (2), 13-14 October 2017, CIPS Lake, Jasper County (2017-061; C. Leroy Harrison)
  • Black Vulture, 17 October 2017, Ft. Sheridan Forest Preserve, Lake County (2017-052; Karen Lund)
  • Swallow-tailed Kite, 31 July 2017, Duckstamp Wetland near Mermet Lake, Massac County (2017-057; Emily Lain)
  • Red-naped Sapsucker, 5-6 April 2012, Wadsworth Wetlands Forest Preserve, Lake County (2012-039; Paul Sweet)
  • Prairie Falcon (2), 28 October 2016 to 29 January 2017, southwest of Arcola, Coles County and Douglas County (2016-102; Ron Bradley)
  • Prairie Falcon (2), 12 November 2016 to 9 January 2017, Mt. Erie bottom, Wayne County (2016-103; C. Leroy Harrison)
  • Prairie Falcon, 28 December 2016, Prairie Ridge State Natural Area, Jasper County (2016-104; C. Leroy Harrison)
  • Prairie Falcon, 17 October 2017, Greene Valley Forest Preserve, DuPage County (2017-056; Jeff Smith)
  • Say’s Phoebe, 19 September 2017, Lake Springfield, Sangamon County (2017-045; H. David Bohlen)
  • Cassin’s Vireo, 3-5 May 1994, Jackson Park in Chicago, Cook County (1994-056; Paul Clyne)
  • Mountain Bluebird, 7-12 April 2017, Fermilab, DuPage County (2017-040; Carolyn Fields, Linda Padera, Stan Zatarski)
  • Hoary Redpoll, 22 November to 14 December 2017, Chicago Botanic Garden in Glencoe, Cook County (2017-063; Matthew Cvetas)

Records Not Accepted

  • Neotropic Cormorant, 29 September 2017, Carpentersville, Kane County (2017-048)
  • Swallow-tailed Kite (2), 20 August 2016, New Douglas, Madison County (2016-063)
  • Brown-headed Nuthatch, 9 September 2016, Chicago Botanic Garden in Glencoe, Cook County (2016-073); accepted as Pygmy/Brown-headed Nuthatch
  • Nashville Warbler (ridgwayi), 20 October 2015, Jarvis Migratory Bird Sanctuary in Chicago’s Lincoln Park, Cook County (2015-069)
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