Canada Warbler vs Red Warbler

Canada Warbler

Cardellina canadensis

Tiny10 gForest

The Canada warbler is sometimes called the "necklaced warbler", because of the band of dark streaks across its chest. The adults have minimal sexual dimorphism, although the male's "necklace" is darker and more conspicuous and also has a longer tail. Adults are 12–15 cm (4.7–5.9 in) long, have a wingspan of 17–22 cm (6.7–8.7 in), and weigh 9–13 g (0.32–0.46 oz). The chest, throat, and belly of the bird are yellow, and its back is dark grey. It has no wingbars or tail spots, but the underside of the tail is white. Voice: The of this bird is loud and highly variable, resembling chip chewy sweet dichetty. Their calls are low chup's. A 2013 study showed that male Canada warblers have two performance-encoded song types. Mode I, used mostly during the day, when unpaired either alone or near a female during early nesting, involves stereotyped songs sung slowly and regularly.

ID text from Wikipedia, CC BY-SA 4.0

Recorded by Manuel cabrera · Call · Pacto Sumaco, Napo, Ecuador · CC BY-SA 4.0

Photo: (c) Matt Felperin, some rights reserved (CC BY), uploaded by Matt Felperin · cc-by

Red Warbler

Cardellina rubra

Tiny8 gForest

The red warbler is a small passerine, measuring 12.5–13.5 cm (4.9–5.3 in) in length, and weighing from 7.6 to 8.7 g (0.27 to 0.31 oz). As an adult, it is red overall, with either a white or dark gray (depending on the subspecies) auricular patch on each side of its head. Its wings and tail are slightly darker, dusky red, and edged in pinkish-red. Its legs are a dull red-brown, and its thin bill is pinkish-gray with a dark tip. The iris is dark brown to blackish. Plumage varies little between the sexes, although the female tends to be a little duller or more orange-tinged. Voice: The red warbler has several common calls, including a high, thin tsii and a stronger pseet. Its song is a mix of short trills and richer warbles, interspersed with high-pitched chips. Unlike other species in the same habitat zone, it tends to sing only during bright morning hours during the breeding season.

ID text from Wikipedia, CC BY-SA 4.0

Photo: Peter Quakenbush · CC BY 4.0

Photos and recordings are credited to their authors under the licence shown. Full profiles: Canada Warbler and Red Warbler.