It is found primarily in Michigan, but also Wisconsin and Ontario. As a result of this ... The warbler has one of the smallest breeding ranges of any North American migratory songbird. Most breeding ...

Because inbreeding can negatively impact survival and reproduction, the results could guide continuing conservation efforts for Kirtland's warblers, whose populations still rely on extensive ...

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 ...