May
3
7:00 AM07:00
Filtering by: Field Trip
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May
3
9:00 AM09:00
North Park Village Nature Center
RSVP Required
NPVNC is a beautiful forest and wetland preserve in northern Chicago that features a good selection of woodland and wetland migrants
May
3
9:00 AM09:00
Borbs and Forbs: Humboldt Park
RSVP Required
Borbs and Forbs is a monthly event for nature enthusiasts and those inspired to give back to our communities. Each month we will visit a Chicago Park to admire local birds and other fauna, followed by a stewardship day with the park's steward.
May
4
8:00 AM08:00
Bilingual McKinley Park Birdwalk / Paseo Bilingüe Parque de McKinley
RSVP Required
Join COS for a bilingual birding trip at McKinley Park! This event is great for all ages including multi-generational families where some family members are more comfortable with Spanish.
May
4
10:00 AM10:00
Humboldt Park Sunday Social Bird Walk
RSVP Required
Join us as we explore Humboldt Park as migratory birds flock to this incredible green oasis in the surrounding urban environment.
May
7
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!
May
9
7:30 AM07:30
COS Walk to Montrose Point Bird Sanctuary
RSVP Required
We'll look for the mix of woodland and water birds in migration that Montrose is known for!
May
10
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
11
7:00 AM07:00
Linne Woods Bird Walk
RSVP Required
Linne Woods is a beautiful mix of bottomland forest, upslope woods and open prairie. We'll walk on trails through all these habitats, looking for a plethora of warblers, thrushes and hawks!
May
11
10:00 AM10:00
Humboldt Park Sunday Social Bird Walk
RSVP Required
Join us as we explore Humboldt Park as migratory birds flock to this incredible green oasis in the surrounding urban environment.
May
14
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!
May
15
to May 18
IN Dunes Birding Festival
One of the most popular and fastest growing birding festivals in North America returns! The Indiana Dunes Birding Festival takes place on May 15-18, 2025 and will feature hundreds of trips highlighting the extraordinary bird diversity present in northwest Indiana and eastern Illinois.
May
17
7:30 AM07:30
Dunning Read Natural Area Spring Bird Walk
RSVP Required
We’re teaming up with the Chicago Public Library Dunning Branch to explore Dunning Read Natural Area.
May
18
7:30 AM07:30
Busse Woods South Bird Walk
RSVP Required
Busse Woods hosts a pretty varied assortment of nesting and pass-through migrants, water birds and raptors.
May
21
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!
May
22
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.
May
25
8:00 AM08:00
Crabtree Nature Center Bird Walk
RSVP Required
It’s COS in the surburbs and we’ll be visiting Crabtree Nature Center in Barrington looking for residents and migratory birds.
May
25
10:00 AM10:00
Humboldt Park Sunday Social Bird Walk
RSVP Required
Join us as we explore Humboldt Park as migratory birds flock to this incredible green oasis in the surrounding urban environment.
May
28
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!
Jun
4
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!
Jun
11
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!
Jun
18
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!
Sep
12
to Sep 14
The Urban Birding Festival
Chicago Ornithological Society is proud to present, in association with our many birding partners, The Urban Birding Festival! Taking place in and around Chicago on September 12-14, 2025 this festival highlights the extraordinary bird diversity present in the area with over 400 recorded species in the Chicago region.
Apr
30
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!
Apr
28
6:00 PM18:00
After Work Bird Walk at Millennium Park
RSVP Required
Join COS for an afternoon walk as we decompress from a long day at work and look for birds at Millennium and Grant Park.
Apr
28
6:00 PM18:00
Sunset Bird Walk at Douglass Park
RSVP Required
End the daylight hours with a COS bird walk at Douglass Park.
Apr
28
1:00 PM13:00
Lincoln Park Zoo Bird Walk
RSVP Required
Join COS for an afternoon bird outing at Lincoln Park Zoo. The park’s Nature Boardwalk is an excellent example of restoring native habitats in urban environments.
Apr
28
10:00 AM10:00
Beginner Bird Walk at Bill Jarvis Migratory Bird Sanctuary
RSVP Required
Join COS for a beginner bird walk at Bill Jarvis Migratory Bird Sanctuary.
Apr
28
6:00 AM06:00
Monday Morning Birding at Montrose
RSVP Required
Join COS for an early morning bird outing at Montrose Point Bird Sanctuary.
Apr
27
8:00 AM08:00
Marian Byrnes - Birds & Botany
RSVP Required
With over 100 acres of wetlands, prairie, and savannah to explore, we'll be on the look out for a variety of early migrants including rails, warblers, sparrows, and raptors.
Apr
26
8:30 AM08:30
Borbs and Forbs: Columbus Park
RSVP Required
Borbs and Forbs is a monthly event for nature enthusiasts and those inspired to give back to our communities. Each month we will visit a Chicago Park to admire local birds and other fauna, followed by a stewardship day with the park's steward.
Apr
25
to Apr 28
City Nature Challenge 2025
COS is excited to once again be a co-organizer of the Chicago area team in this year’s City Nature Challenge!
Apr
23
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!
Apr
19
7:00 AM07:00
Indian Ridge Marsh Bird Walk
RSVP Required
Join us for a morning of birding at one of Chicago's hidden gems - Indian Ridge Marsh! We will be looking for water birds, early passerine migrants, and shorebirds.
Apr
19
7:00 AM07:00
Montrose Point Beginner Bird Walk
RSVP Required
This trip is specifically for beginning birders. We will focus on birding basics and identifying the most common birds in Chicago.
Apr
16
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!
Apr
13
10:00 AM10:00
Humboldt Park Sunday Social Bird Walk
RSVP Required
Join us as we explore Humboldt Park as migratory birds flock to this incredible green oasis in the surrounding urban environment.
Apr
12
7:00 AM07:00
Big Marsh Park
RSVP Required
Join us as we explore Big Marsh for shorebirds, water birds, and early passerine migrants.
Apr
9
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!
Apr
6
8:00 AM08:00
Bilingual McKinley Park Birdwalk / Paseo Bilingüe Parque de McKinley
RSVP Required
Join COS for a bilingual birding trip at McKinley Park! This event is great for all ages including multi-generational families where some family members are more comfortable with Spanish.
Apr
3
7:15 PM19:15
Woodcock Walk - Indian Boundary Prairies
RSVP Required
Join COS on an evening hike to observe the spectacular making dance of the elusive Timber doodle (or American Woodcock).
Apr
2
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
31
7:15 PM19:15
Woodcock Walk - Marian Byrnes
RSVP Required
Join COS on an evening hike to observe the spectacular making dance of the elusive Timber doodle (or American Woodcock).
Mar
29
7:00 PM19:00
Woodcock Walk - Park 566
RSVP Required
Join COS on an evening hike to observe the spectacular making dance of the elusive Timber doodle (or American Woodcock).
Mar
28
7:00 PM19:00
Woodcock Walk - Air Station Prairie
RSVP Required
Join COS on an evening hike to observe the spectacular making dance of the elusive Timber doodle (or American Woodcock).
Mar
26
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
24
7:00 PM19:00
Woodcock Walk - Air Station Prairie
RSVP Required
Join COS on an evening hike to observe the spectacular making dance of the elusive Timber doodle (or American Woodcock).
Mar
23
8:00 AM08:00
Douglass Park Bird Walk
RSVP Required
Join us as we explore Douglass Park and observe winter birds and early spring migrants.
Mar
21
7:00 PM19:00
Woodcock Walk - Air Station Prairie
RSVP Required
Join COS on an evening hike to observe the spectacular making dance of the elusive Timber doodle (or American Woodcock).
Mar
19
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
15
8:00 AM08:00
Bilingual McKinley Park Birdwalk / Paseo Bilingüe Parque de McKinley
RSVP Required
Join COS for a bilingual birding trip at McKinley Park! This event is great for all ages including multi-generational families where some family members are more comfortable with Spanish.
Mar
12
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
9
9:00 AM09:00