What is the most striking field mark coloration on the breeding male Blackburnian Warbler's face and throat?

Answer

Flame-orange

The breeding male is instantly recognizable due to a spectacular wash of flame-orange covering its face and throat, which is considered its single most striking field mark.

What is the most striking field mark coloration on the breeding male Blackburnian Warbler's face and throat?

#Videos

Fall Blackburnian Warbler Identification - YouTube

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