The Illinois
Ornithological Society

Dedicated to Illinois Birds and Birding

- Announcements & Upcoming Events -

The 2011 Gull Frolic will be held on February 19, 2011. To register, please download and fill out the 2011 Gull Frolic Registration Form (PDF).

The 2010 Listers Corner Blank Form (PDF) is now available.

The Index for Volume 18, Number 1 - 4 of Meadowlark is now available: Meadowlark Index, Volume 18, Number 1 - 4. A link to the index can also be found on the Meadowlark Journal Information page.

Interested in monitoring birds in the Chicago area? See The Bird Conservation Network (BCN) Census page to learn how.

The Birds of Illinois series has been updated to reflect the recent taxonomic and nomenclatural changes made by the American Ornithologists' Union.

New photos added to the Photo Archives page include Burrowing Owl, Bewick's Wren, and Swainson's Warbler.

The 2010 IOS Grant Awards page is now up.

The Site Map contains brief descriptions of and links to each main document on this Web site.

Support IOS through your purchases at Eagle Optics. Learn how here.

Illinois Ornithological Society Objectives

  • To promote scientific research and education in order to improve knowledge and awareness of birds in Illinois
  • To publish a journal of Illinois bird life, Meadowlark, A Journal of Illinois Birds
  • To keep a permanent historical record of Illinois bird life
  • To maintain an up-to-date state checklist of Illinois birds
  • To support the well-being of birds and birding in Illinois
  • To encourage others to become interested in birds and birding in Illinois

IOS welcomes everyone to explore our Web site. Learn more about our organization and ways of becoming involved with Illinois bird life. IOS is a not-for-profit organization incorporated in the state of Illinois. All graphics, photos, text, and code are copyrighted to The Illinois Ornithological Society; any unauthorized use is prohibited. Questions or comments regarding this Web site should be directed to Robert D. Hughes.

The Site Map contains brief descriptions of and links to each main document on this Web site.

Header Photo:Henslow's Sparrow by Carolyn Fields.