Canada Warbler vs Pink-headed 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

Pink-headed Warbler

Cardellina versicolor

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The pink-headed warbler measures 12.5–13.5 cm (4.9–5.3 in) in length, and weighs 10 g (0.35 oz). Both sexes have a similar plumage, though females are, on average, slightly duller overall. The adult has dark red upperparts, a silvery-pink chest and pinkish-red underparts. Its head is silvery-pink, with a reddish forehead, dusky lores and dark brown irises. Its bill is blackish, sometimes showing some horn color on the lower mandible, and its legs are flesh-colored. The juvenile is a rich brown with slightly paler underparts. However, that plumage is quickly molted. Voice: The pink-headed warbler's call is high, thin, and somewhat metallic, variously transcribed as tsiu, ssing or tseeip. It also has a low, weak chip that it uses to stay in contact with its mate. Its song is a series of short trills and chips, described as being "clear and cheery" and reminiscent of the song of the yellow warbler, as well as slower and less varied than that of the red warbler.

ID text from Wikipedia, CC BY-SA 4.0

Photo: datadan · CC BY 4.0

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