Apr
26
to Apr 29
View Event →
Apr
26
6:00 PM18:00
After Work Bilingual (English/Spanish) Thatcher Woods Birdwalk Paseo de observación de aves bilingüe en la tarde (inglés/español) El Bosque de Thatcher
RSVP Required
Join COS after work on a bilingual bird walk! Thatcher Woods is a unique site where we can expect to see a lot of woodland and migratory bird species.
Únanse con la SOC para un paseo de aves después de las horas del trabajo. El Bosque de Thatcher es un sitio único donde podemos esperar ver muchas especies de bosques y aves migratorias.
Apr
27
7:00 AM07:00
Northerly Island Bird Walk
RSVP Required
Join COS for a bird walk through Northerly Island. If we're lucky, we might even catch a glimpse of nearby nesting Peregrine Falcons in advance of our Year of the Peregrine program after the walk.
Apr
27
9:00 AM09:00
Bilingual (English/Spanish) Riis Park Bird Walk - Paseo de Observación de aves Bilingüe Parque de Riis
RSVP Required
Riis Park is home to many species of birds. We will observe birds that can be commonly found in the park such as Northern Cardinal, American Robin, Great Blue Heron, and woodpeckers. We will also observe birds that are just stopping by on their migration up north.
El Parque de Riis es el hogar de muchas especies de aves. Observaremos aves que se pueden encontrar comúnmente en el parque como el cardenal rojo, el mirlo primavera, la garza morena y los pájaros carpinteros. También observaremos aves que están de paso en su migración hacia el norte.
Apr
27
10:00 AM10:00
The Hunt for Peregrines
In Person Program
RSVP Required
It’s the Year of the Peregrine! Join COS at the Field Museum for a behind-the-scenes journey through the Field Museum's Bird Collection highlighting peregrine specimens!
Apr
29
7:00 AM07:00
Park 566 Bird Walk
Join us for a spring migration walk at Park 566! This uniquely urban habitat is host to countless migratory birds and one of the best places in Chicago to observe grassland birds, raptors, waterfowl, and many other species on their journey north.
Apr
29
6:00 PM18:00
After Work Bird Walk at Montrose Point
RSVP Required
Join COS for an afternoon walk as we decompress from a long day at work and look for birds at the Montrose Point Bird Sanctuary.
Apr
30
6:00 PM18:00
City Nature Challenge ID Party
Join our partners and your fellow nature nerds for a party where the field guides are the main dish! Following the City Nature Challenge, we need all hands to help identify the many birds found and uploaded to inatualist.
May
1
7:00 AM07:00
Jackson Park Bird Walk
RSVP Required
Join IndiGo Birding Nature Tours guide David Rupp for a walk through Jackson Park. We will look for warblers, vireos, thrushes, and all other Neotropical migrants that are passing through the park on the first day of May. All levels of birders are welcome!
May
4
1:00 AM01:00
IL Spring Bird Count
Join the annual Illinois Spring Bird Count and help support one of the longest running citizen science efforts in the state.
May
4
7:00 AM07:00
Burnham Prairie Bird Walk
RSVP Required
Join COS for a morning of birding at one of Cook County's best kept secrets. Expect a nice variety of migrating waterfowl, shorebirds, and early spring passerines.
May
5
10:00 AM10:00
LaBagh Woods Stewardship Workday
Join us for a habitat restoration workday at COS’s flagship stewardship site LaBagh Woods, and help bring back critical bird habitat.
May
6
7:00 AM07:00
Park 566 Bird Walk
Join us for a spring migration walk at Park 566! This uniquely urban habitat is host to countless migratory birds and one of the best places in Chicago to observe grassland birds, raptors, waterfowl, and many other species on their journey north.
May
11
9:00 AM09:00
Montrose Bird Sanctuary Stewardship Workday
Join the stewards of Montrose Point Bird Sanctuary (Magic Hedge) for a workday at one of the top bird watching spots in the country!
May
12
10:00 AM10:00
LaBagh Woods Stewardship Workday
Join us for a habitat restoration workday at COS’s flagship stewardship site LaBagh Woods, and help bring back critical bird habitat.
May
18
9:00 AM09:00
Montrose Dunes Stewardship Workday
Join the stewards of Montrose Beach Dunes for a workday at one of the top bird watching spots in the country!
May
22
7:30 PM19:30
31st Street Beach Moon Watch
RSVP Required
Join COS for this unique birding event modeled on the way 19th century astronomers helped us better understand night migration. This is a fun opportunity to see some birds, and enjoy the moonlight along the lake with the company of other birders.
May
26
10:00 AM10:00
LaBagh Woods Stewardship Workday
Join us for a habitat restoration workday at COS’s flagship stewardship site LaBagh Woods, and help bring back critical bird habitat.
Jun
2
9:00 AM09:00
LaBagh Woods Stewardship Workday
Join us for a habitat restoration workday at COS’s flagship stewardship site LaBagh Woods, and help bring back critical bird habitat.
Jun
8
9:00 AM09:00
Montrose Bird Sanctuary Stewardship Workday
Join the stewards of Montrose Point Bird Sanctuary (Magic Hedge) for a workday at one of the top bird watching spots in the country!
Jun
13
6:00 PM18:00
Birds & Bytes: The Peregrines of Rockford
Virtual Program
RSVP Required
It’s the Year of the Peregrine! Join COS for the latest episode of our virtual program series Birds & Bytes as we learn how Peregrines won over the hearts of another Illinois city and become the official bird of Rockford.
Jun
15
9:00 AM09:00
LaBagh Woods Stewardship Workday
Join us for a habitat restoration workday at COS’s flagship stewardship site LaBagh Woods, and help bring back critical bird habitat.
Jun
22
9:00 AM09:00
Montrose Dunes Stewardship Workday
Join the stewards of Montrose Beach Dunes for a workday at one of the top bird watching spots in the country!
Jun
22
5:00 PM17:00
2024 Bird Conservation Fundraiser
Mark your calendar and join us for the bird conservation party of the year!
Join us on Saturday, June 22nd at 5pm where we will enjoy live music, delicious craft beers, major announcements, and of course, birding, while raising money for Chicago Ornithological Society’s many bird conservation projects.
Jul
7
9:00 AM09:00
LaBagh Woods Stewardship Workday
Join us for a habitat restoration workday at COS’s flagship stewardship site LaBagh Woods, and help bring back critical bird habitat.
Jul
13
9:00 AM09:00
Montrose Bird Sanctuary Stewardship Workday
Join the stewards of Montrose Point Bird Sanctuary (Magic Hedge) for a workday at one of the top bird watching spots in the country!
Jul
18
6:00 PM18:00
Birds & Bytes: A Journey of Discovery with Peregrine Falcons
Virtual Program
RSVP Required
It’s the Year of the Peregrine! Join COS for the latest episode of our virtual program series Birds & Bytes as we look at what it really takes to bring a species back from the brink.
Jul
20
9:00 AM09:00
LaBagh Woods Stewardship Workday
Join us for a habitat restoration workday at COS’s flagship stewardship site LaBagh Woods, and help bring back critical bird habitat.
Jul
20
9:00 AM09:00
Montrose Dunes Stewardship Workday
Join the stewards of Montrose Beach Dunes for a workday at one of the top bird watching spots in the country!
Aug
4
9:00 AM09:00
LaBagh Woods Stewardship Workday
Join us for a habitat restoration workday at COS’s flagship stewardship site LaBagh Woods, and help bring back critical bird habitat.
Aug
10
9:00 AM09:00
Montrose Bird Sanctuary Stewardship Workday
Join the stewards of Montrose Point Bird Sanctuary (Magic Hedge) for a workday at one of the top bird watching spots in the country!
Aug
17
9:00 AM09:00
Montrose Dunes Stewardship Workday
Join the stewards of Montrose Beach Dunes for a workday at one of the top bird watching spots in the country!
Aug
17
9:00 AM09:00
LaBagh Woods Stewardship Workday
Join us for a habitat restoration workday at COS’s flagship stewardship site LaBagh Woods, and help bring back critical bird habitat.
Sep
1
9:00 AM09:00
LaBagh Woods Stewardship Workday
Join us for a habitat restoration workday at COS’s flagship stewardship site LaBagh Woods, and help bring back critical bird habitat.
Sep
8
9:00 AM09:00
Montrose Bird Sanctuary Stewardship Workday
Join the stewards of Montrose Point Bird Sanctuary (Magic Hedge) for a workday at one of the top bird watching spots in the country!
Sep
21
9:00 AM09:00
Montrose Dunes Stewardship Workday
Join the stewards of Montrose Beach Dunes for a workday at one of the top bird watching spots in the country!
Sep
21
9:00 AM09:00
LaBagh Woods Stewardship Workday
Join us for a habitat restoration workday at COS’s flagship stewardship site LaBagh Woods, and help bring back critical bird habitat.
Oct
6
10:00 AM10:00
LaBagh Woods Stewardship Workday
Join us for a habitat restoration workday at COS’s flagship stewardship site LaBagh Woods, and help bring back critical bird habitat.
Oct
19
10:00 AM10:00
LaBagh Woods Stewardship Workday
Join us for a habitat restoration workday at COS’s flagship stewardship site LaBagh Woods, and help bring back critical bird habitat.
Oct
20
9:00 AM09:00
Montrose Point AND Dunes Stewardship Workday
Join the stewards of Montrose Point Bird Sanctuary for a workday at one of the top bird watching spots in the country!
Oct
23
6:00 PM18:00
Chicago's Bird
RSVP Required
Peregrine Falcons are right at home in Chicago’s urban cliffs and canyons and can be seen tearing through the sky in search of food for hungry chicks. Join COS President Edward Warden as we go out in search of these mighty birds and see them in action.
Nov
3
10:00 AM10:00
LaBagh Woods Stewardship Workday
Join us for a habitat restoration workday at COS’s flagship stewardship site LaBagh Woods, and help bring back critical bird habitat.
Nov
16
10:00 AM10:00
LaBagh Woods Stewardship Workday
Join us for a habitat restoration workday at COS’s flagship stewardship site LaBagh Woods, and help bring back critical bird habitat.
Dec
1
10:00 AM10:00
LaBagh Woods Stewardship Workday
Join us for a habitat restoration workday at COS’s flagship stewardship site LaBagh Woods, and help bring back critical bird habitat.
Dec
21
10:00 AM10:00
LaBagh Woods Stewardship Workday
Join us for a habitat restoration workday at COS’s flagship stewardship site LaBagh Woods, and help bring back critical bird habitat.
Apr
23
6:00 PM18:00
After Work Bird Walk at The Wild Mile
RSVP Required
Join COS for an afternoon walk as we decompress from a long day at work and look for birds at the Wild Mile.
Apr
22
7:00 AM07:00
Park 566 Bird Walk
Join us for a spring migration walk at Park 566! This uniquely urban habitat is host to countless migratory birds and one of the best places in Chicago to observe grassland birds, raptors, waterfowl, and many other species on their journey north.
Apr
20
10:00 AM10:00
LaBagh Woods Stewardship Workday
Join us for a habitat restoration workday at COS’s flagship stewardship site LaBagh Woods, and help bring back critical bird habitat.
Apr
20
9:00 AM09:00
Montrose Dunes Stewardship Workday
Join the stewards of Montrose Beach Dunes for a workday at one of the top bird watching spots in the country!
Apr
18
6:30 PM18:30
The Nighthawk at North Park Village Nature Center
RSVP Required
Join us for a program all about the mysterious nighthawk; what makes them tick, why are they disappearing, and what's being done to save them right here in Chicago.
Apr
15
7:00 AM07:00
Park 566 Bird Walk
Join us for a spring migration walk at Park 566! This uniquely urban habitat is host to countless migratory birds and one of the best places in Chicago to observe grassland birds, raptors, waterfowl, and many other species on their journey north.
Apr
13
10:00 AM10:00
Bird Photography at Big Marsh
RSVP Required
Join us for a hands-on workshop into the captivating world of bird photography with professional bird photographer, J’orge @yorickgarcia! Gain insights into kickstarting your bird photography adventure, from choosing the right gear to setting your camera, and mentally preparing yourself for capturing that perfect shot.
Apr
13
9:00 AM09:00
Bilingual (English/Spanish) McKinley Park Bird Walk - Paseo de Observación de aves Bilingüe (inglés/español) Parque de McKinley
RSVP Required
En este viaje ¡nos enfocaremos en los primeros en migrar! Únanse a los líderes del viaje Em De Blas mientras buscamos bizcochas americanas y otras aves playeras y paseriformes.
Apr
8
7:00 AM07:00
Park 566 Bird Walk
Join us for a spring migration walk at Park 566! This uniquely urban habitat is host to countless migratory birds and one of the best places in Chicago to observe grassland birds, raptors, waterfowl, and many other species on their journey north.
Apr
7
10:00 AM10:00
Bird Photography at Peggy Notebaert Nature Museum
RSVP Required
Join us for a hands-on workshop into the captivating world of bird photography with professional bird photographer, J’orge @yorickgarcia! Gain insights into kickstarting your bird photography adventure, from choosing the right gear to setting your camera, and mentally preparing yourself for capturing that perfect shot.
Apr
7
10:00 AM10:00
LaBagh Woods Stewardship Workday
Join us for a habitat restoration workday at COS’s flagship stewardship site LaBagh Woods, and help bring back critical bird habitat.
Apr
6
7:30 AM07:30
Indian Ridge Field Trip
RSVP Required
Join Stephanie Beilke and Jake Vinsel on a search for early spring migrants in the savanna and wetlands of Indian Ridge Marsh.
Apr
5
7:30 AM07:30
Humboldt Park Bird Walk
RSVP Required
Celebrate spring with an early-April bird walk at the 197-acre Humboldt Park. Guide David Rupp of IndiGo Birding Nature Tours will lead a relaxed walk suitable for all levels of birders.
Apr
1
7:00 AM07:00
Park 566 Bird Walk
Join us for a spring migration walk at Park 566! This uniquely urban habitat is host to countless migratory birds and one of the best places in Chicago to observe grassland birds, raptors, waterfowl, and many other species on their journey north.
Mar
27
7:00 PM19:00
North Lakefront Woodcock Walk
RSVP Required
Join COS on an evening hike to observe the spectacular mating dance of the elusive Timberdoodle (American Woodcock).
Mar
26
7:00 PM19:00
Indian Boundary Prairie Woodcock Walk
RSVP Required
Join COS on an evening hike to observe the spectacular mating dance of the elusive Timberdoodle (American Woodcock).
Mar
25
6:45 PM18:45
Air Station Prairie Woodcock Walk
RSVP Required
Join COS on an evening hike to observe the spectacular mating dance of the elusive Timberdoodle (American Woodcock).
Mar
25
7:00 AM07:00
Park 566 Bird Walk
Join us for a spring migration walk at Park 566! This uniquely urban habitat is host to countless migratory birds and one of the best places in Chicago to observe grassland birds, raptors, waterfowl, and many other species on their journey north.
Mar
24
7:00 PM19:00
Park 566 Woodcock Walk
RSVP Required
Join COS on an evening hike to observe the spectacular mating dance of the elusive Timberdoodle (American Woodcock).
Mar
23
10:00 AM10:00
The Nighthawk at Big Marsh Park
RSVP Required
Join us for a program all about the mysterious nighthawk; what makes them tick, why are they disappearing, and what's being done to save them right here in Chicago.
Mar
22
7:00 PM19:00
North Park Village Nature Center Woodcock Walk
RSVP Required
Join COS on an evening hike to observe the spectacular mating dance of the elusive Timberdoodle (American Woodcock).
Mar
21
6:00 PM18:00
Flock Club: Bird Trivia at Galway Arms
COS proudly presents the newest social event by and for birders; Flock Club! Join us as we gather to share our passion for birds in a casual and accessible environment.
Mar
20
7:00 PM19:00
Park 566 Woodcock Walk
RSVP Required
Join COS on an evening hike to observe the spectacular mating dance of the elusive Timberdoodle (American Woodcock).
Mar
18
6:45 PM18:45
Air Station Prairie Woodcock Walk
RSVP Required
Join COS on an evening hike to observe the spectacular mating dance of the elusive Timberdoodle (American Woodcock).
Mar
16
10:00 AM10:00
LaBagh Woods Stewardship Workday
Join us for a habitat restoration workday at COS’s flagship stewardship site LaBagh Woods, and help bring back critical bird habitat.
Mar
16
7:00 AM07:00
Bilingual (English/Spanish) Big Marsh Bird Walk - Paseo de Observación de aves Bilingüe (inglés/español) Big Marsh
RSVP Required
En este viaje ¡nos enfocaremos en los primeros en migrar! Únanse a los líderes del viaje Em De Blas y Jake Vinsel mientras buscamos bizcochas americanas y otras aves playeras y paseriformes.
Mar
13
7:00 AM07:00
North Pond Wednesday Bird Walks
In cooperation with Third Coast Birding and Peggy Notebaert Nature Museum, COS is proud to continue our long tradition of Wednesday morning bird walks at North Pond!
Mar
10
9:00 AM09:00
Peregrine Watch
RSVP Required
Peregrine Falcons are right at home in Chicago’s urban cliffs and canyons and can be seen tearing through the sky in search of food for hungry chicks. Join COS President Edward Warden as we go out in search of these mighty birds and see them in action.
Mar
6
6:00 PM18:00
Birds & Bytes: Bird-Friendly Building Design
Virtual Program
RSVP Required
Join COS for the latest episode of our virtual program series Birds & Bytes as we talk to the architect of the Willowbrook Wildlife Center expansion about the process of designing a bird friendly building.
Mar
3
10:00 AM10:00