We have been assessing bird populations within the Tollway corridor using:

– intensive searches – walk on or off trail, documenting all species encountered (heard or seen)
– line transect surveys – walk a designated transect and document all species encountered
– circular plot counts – stand in a designated location for a fixed amount of time and document all species encountered

Ruby-throated Hummingbird
Blue Jay
Common Yellow-throat
Palm Warbler
White-breasted Nuthatch


I-90 post construction
Trout Park
Migratory bird usage of Forest Preserves along I-294
IL53-IL120 extension assessment
IL Rt 390 extension
North Chicago Wetland Mitigation Bank
– Bird communities in urban parks


Publications: None yet.