Bird Migration Through Forest Preserves

Arie Crown and Bemis Woods Forest Preserves

Current and historic data suggest the Forest Preserves provide stopover and breeding habitat for a diversity of forest birds. In 2015 we began monitoring spring and fall migration through two preserves along I-294, Arie Crown Forest and Bemis Woods.

Fall 2015

18.2 hours of intensive searches at Arie Crown and Bemis Woods

– detected 55 species

Spring to Summer 2016

23.5 hours of circular plot counts and 66.9 hours of intensive searches at Bemis Woods and Arie Crown Forest

– Detected 134 species including 7 species in greatest need of conservation

The most commonly detected groups were:

– American Robin
– Indigo Bunting
– Northern Cardinal
– Woodpeckers (predominantly Downy and Red-bellied)

Fall 2016

30 hours of point count surveys at Bemis Woods and Arie Crown Forest

– detected 66 species
– American Robins were over 60% of the birds

Learn more about our bird research