Mangrove Warbler
Setophaga petechia
The mangrove warbler is around 13 cm (5.1 in) in length. Apart from the rufous hood of the male, all subspecies are very similar. Females and immature birds have similarly greenish-yellow uppersides and are a duller yellow below. Young males soon acquire breast and, where appropriate, head coloration. Females are somewhat duller, most notably on the head. In all, the remiges and rectrices are blackish olive with yellow edges, sometimes appearing as an indistinct wing-band on the former. The eyes and the short thin beak are dark, while the feet are lighter or darker olive-buff.
ID text from Wikipedia, CC BY-SA 4.0
Yellow-rumped Warbler
Setophaga coronata
The yellow-rumped warbler has an average length of 14 cm and weight of 12.5 g, its appearance is different across its subspecies groups, especially the two major ones: the coronata group (myrtle warbler) and the auduboni group (Audubon's warbler); intra-group variations are also observed. In spite of varying appearances, the yellow rump (as suggested by its name) is present in all subspecies and thus characterizes the yellow-rumped warbler.
ID text from Wikipedia, CC BY-SA 4.0
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