American Redstart
Setophaga ruticilla
The American redstart is a smallish warbler. It measures 11 to 14 cm (4.3 to 5.5 in) in total length and has a wingspan of 16 to 23 cm (6.3 to 9.1 in). Its length is boosted by a relatively long tail and it is one of the lightest birds in its family. Weight is considerably less in winter than in summer. Males weigh an average of 8.6 g (0.30 oz) in summer but drop to 7.2 g (0.25 oz) in winter, while females drop even more from an average of 8.7 g (0.31 oz) to an average of 6.9 g (0.24 oz). Among standard measurements, the wing chord is 5.5 to 6.9 cm (2.2 to 2.7 in), the tail is 4.9 to 5.
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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Play today's Daily BirdPhotos and recordings are credited to their authors under the licence shown. Full profiles: American Redstart and Yellow-rumped Warbler.