Baltimore Orioles are one of the bird species migrating in high numbers, along with Yellow Warblers, Nashville Warblers and Rose-breasted Grosbeaks, according to the website. Typically bird ...

Between 10 p.m. Sunday and 6 a.m. Monday alone, more than 22.8 million birds crossed over Illinois state lines, with 2.6 million of those birds crossing over Cook County.

For birders seeking variety and excitement, the best time to bird in Illinois in in May, according to BWD, when "when hoards of neotropical migrants including warblers, vireos, orioles and ...

CHICAGO, Illinois — Nearly 1,000 birds were found dead outside a building in Chicago after they collided overnight with the glass windows while migrating, ... mostly warblers, ...

When warblers warn of cowbirds, blackbirds get the message Date: March 31, 2020 Source: University of Illinois at Urbana-Champaign, News Bureau Summary: ...

WASHINGTON (AP) -- Raise my kids, or else!