Field Trip Recap: Sunday Social at Humboldt Park COS board member and trip leader Chris Holden recaps the Sunday Social Bird Walk at Humboldt Park on April 19. Read More Field TripKris HansenMay 3, 2026Sunday Social, Humboldt Park
Field trip recap: Sunday Social COS board member and trip leader recaps the Sunday Social at Humboldt Park on Nov. 2, 2025. Read More Field TripKris HansenNovember 15, 2025Humboldt Park, Sunday Social
