Euphagus carolinus

The Rusty Blackbird breeds in wet boreal forests, where it feeds along shallow pools, muddy edges and floating vegetation. In autumn and winter, rusty feather edges give the species its English name; these wear away toward spring, leaving males largely black. Numbers have declined steeply across North America, making even its quiet northern breeding habitats important.
Locations where this species is supported by a dated first record, an unambiguous single-place outing or a reviewed assignment.