The colours on this warbler are stunning. When the sun hits throat it just lights up.
-Brilliant orange throat.-
-Orange yellow eyebrow.-
-Small black face mask.
-Broad white wingbars.
Although the Blackburnian Warbler does not associate with other birds while it is nesting, it will join foraging flocks of chickadees, kinglets, and nuthatches after the young fledge. The warbler will follow the mixed flock with its begging young. The begging of the warbler chicks can even attract chickadees.
source - Cornell Lab of Ornithology.