Blackburnian

Some articles on blackburnian:

Blackburnian Warbler - Description
... Blackburnian Warblers are around 11 to 13 cm (4.3 to 5.1 in) long, with a 20 to 22 cm (7.9 to 8.7 in) wingspan, and weigh 8 to 13 g (0.28 to 0.46 oz) ... In summer, male Blackburnian Warblers display dark gray backs and double white wing bars, with yellowish rumps and dark brown crowns ... Blackburnian Warblers' songs are a simple series of high swi notes, which often ascend in pitch ...
Blackburnian Warbler
... The Blackburnian Warbler (Setophaga fusca) is a small New World warbler ... Blackburnian Warblers are migratory, wintering in southern Central America and in South America, and are very rare vagrants to western Europe ...