Unlike other vireos, but compare with pine warbler, with which it is confused, particularly in winter. Pine warbler has a greenish yellow rump, streaked sides, thinner bill, and less complete and ...
The breeding habitat of Kirtland's warblers is limited to young jack-pine forests in Michigan. The species nearly went extinct in the 1970s due to threatened habitat and nest parasitism ...
Kirtland's warblers have also been known as jack pine warblers, as their breeding habitat is limited to young jack-pine forests in Michigan. The species nearly went extinct in the 1970s due to ...