The question of origin of Barnacle Geese that are observed in Illinois is not straightforward, at least not for making […]
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Category: IOS
Rare Bird Alert – 19-Dec-2017
Gyrfalcon: Lee (North) – Elizabeth Milne-Anschutz photographed a Gyrfalcon zipping by Sinnissippi Park in Sterling on December 19th. Barnacle Goose: […]
Read More → IORC Update – 26 November 2017
The Illinois Ornithological Records Committee (IORC) recently concluded evaluations of 15 records of occurrence of rare birds in Illinois, accepting […]
Read More → Distant Eagle Identification
As November rolls in, many Illinois birders shift their focus to a shorter list of target species. The majority of […]
Read More → Christmas Bird Count (CBC) Map
IOS has created a Christmas Bird Count (CBC) map so you can easily find count circles near you. Click on […]
Read More → Rare Bird Alert – 31-Oct-2017
Glossy/White-faced Ibis: McHenry (North) – Up to nine dark ibis were present at Glacial Park Conservation Area in McHenry County […]
Read More → From the Archives: Illinois’ First (and Still Only) Hepatic Tanager
A shorter version of this account was published in the Spring 1982 edition of the Illinois Audubon Bulletin. Exotic birds? […]
Read More → IORC Update – 8 October 2017
The Illinois Ornithological Records Committee (IORC) recently concluded evaluation of 20 records of occurrence of rare birds in Illinois, accepting […]
Read More → 2017 Carlyle Lake Pelagic Wrap Up
My First “Pelagic” Trip “I’m not talkin’ ’bout pleasure boatin’ or day sailin’. I’m talkin’ ’bout workin’ for a livin’. […]
Read More → IOS Shorebirding Weekend Recap
On August 19 and 20, more than fifty birders joined IOS for an excellent weekend of birding in central Illinois. […]
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