Field trip recap: Marian R. Byrnes Natural Area COS member Kris Hansen recaps the rail-friendly Birds and Botany walk at Marian R. Byrnes Natural Area April 19. Read More Field TripKris HansenApril 25, 2026Marian Byrnes, Birds & Botany, Calumet
Field Trip Recap: Woodcock Walk at Marian Byrnes Park COS member Joann Umeki recaps the 150th bird walk that President Edward Warden has led for COS. Read More Field TripKris HansenApril 7, 2026Marian Byrnes, Calumet
Field trip recap: Owl Prowl at Marian Byrnes Park COS member Steve Whitman recaps the owl prowl at Marian R. Byrnes Park. Read More Field TripKris HansenDecember 21, 2025Marian Byrnes, Calumet
Birds & Botany: Marian Byrnes Natural Area COS member Kris Hansen recaps the bird walk at Marian Byrnes Natural Area on June 1, 2025. Read More Field TripKris HansenJune 7, 2025Marian Byrnes, Calumet
