RSVP Required

Join us as we search for any remaining fall migrants at a hidden gem in the city full of native flora, a large pond, and plenty of lookout points.

RSVP Required

Join COS and Lake County Audubon Society for a hike at Cuba Marsh.

RSVP Required

Join us at Montrose for a morning of fall migration birding.

RSVP Required

Join COS for a morning observing hawks migrating down the lake front from a unique vantage point - the top of the climbing wall.

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!

RSVP Required

Experience fall migration in the northwest suburbs. A diversity of birds can be found in throughout prairie, woodland, and wetland habitats.

RSVP Required

Join us as we explore Humboldt Park as migratory birds flock to this incredible green oasis in the surrounding urban environment.

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.

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!

RSVP Required

Join COS for a morning observing hawks migrating down the lake front. This is a mostly stationary birding experience.

RSVP Required

Join us for a fall migration bird walk on the south side looking for water birds, sparrows, and raptors.

RSVP Required

This full-morning trip is specifically for beginning birders. We will focus on birding basics and identifying the most common birds in Chicago. 

RSVP Required

Join us at Montrose for a morning of fall migration birding.

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!

Registration Required

Join COS and Friends of the Chicago River for a trip down the Chicago River in search of migrant warblers, waterfowl, swallows, and much more.

Registration Required

Join COS and Friends of the Chicago River for a trip down the Calumet River in search of migrant warblers, waterfowl, swallows, and much more.

RSVP Required

We'll be looking for fall migrants, especially songbirds and raptors in this wooded habitat along the north branch of the Chicago river in Glenview.

RSVP Required

Join us at Montrose for a morning of fall migration birding.

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!

RSVP Required

Experience fall migration in the northwest suburbs. A diversity of birds can be found in throughout prairie, woodland, and wetland habitats.

Join us for a fall 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 south.

RSVP Required

Join us as we explore Humboldt Park as migratory birds flock to this incredible green oasis in the surrounding urban environment.

RSVP Required

Join us as we explore Horner Park - a city park with a natural area that stretches along the Chicago River. We'll look for early fall migratory birds and soak in the blooming wildflowers.

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!

Join us for a fall 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 south.

RSVP Required

This full-morning trip is specifically for beginning birders. We will focus on birding basics and identifying the most common birds in Chicago. 

RSVP Required

End the day with a COS bird walk at Millennium Park and Grant Park.

RSVP Required

We’ll explore the Penny Road Pond trails of this Cook County Forest Preserve in Barrington offering diverse habitat such as remnant prairie, sedge meadow, and fen.

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!

RSVP Required

We’ll explore Beverly Lake and Healy Savannah sections of this Cook County Forest Preserve in Barrington offering diverse habitat such as remnant prairie, sedge meadow, and fen.