Bay-chested Warbling Finch
Castanozoster thoracicus
Small finch with a conspicuous chestnut breast and flanks. Gray above with a white throat and belly and a white arc below the eye. Found at the edge of montane forests, in open woodlands, and clearings; often accompanies mixed-species flocks. Listen for its calm “tsip-cheep” song.
Taxonomy
The bay-chested warbling finch was formally described in 1835 by the Finnish naturalist Alexander von Nordmann from a specimen collected in Brazil. He coined the binomial name Frigilla thoracica. This species was traditionally placed in the genus Poospiza. A molecular phylogenetic study published in 2014 found that the genus was polyphyletic. In the subsequent reorganisation the bay-chested warbling finch was moved to its own newly erected genus Castanozoster. The name combines the Ancient Greek καστανό meaning "chestnut" with ζωστήρ meaning "belt". The bay-chested warbling finch is monotypic: no subspecies are recognised.
- Scientific name
- Castanozoster thoracicus
- Authority
- (Nordmann, 1835)
- Order
- Passeriformes
- Family
- Zosteropidae
- Genus
- Castanozoster
Range and habitat
- Migration
- Complete migrants
Conservation
- Population trend
- declining
Photos
Distribution
Bird Calls
Other Birds

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Medium-sized woodpecker with bold black-and-white barring on back and a cream-colored belly. A patch of yellow on the lower belly can be difficult to see. Male has red crown and yellow nape. Female lacks red crown. Distinctive in range, but hybridizes with Red-crowned Woodpecker; hybrids best left unidentified. Found in open woodland, edges, and gardens.

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Fluvicola albiventer
Medium-sized flycatcher, usually seen walking on the ground around marshy areas, lakes, and rivers. Mostly white below and on the face contrasting with a black crown and back, a white rump and two white wingbars. Sweeps its tail conspicuously from side to side. The call is a sharp and short “tic.”

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A distinctive pheasant with bare red facial skin, a backward-pointing crest, and a vertically compressed tail. Males are iridescent black and silver. Females are grayish-brown. Coloration varies considerably throughout its range, with northeastern birds averaging the darkest. Occurs in forested areas, usually in hilly or mountainous regions. Overlaps with Silver Pheasant in the north of its range, with which it produces confusing intergrades. Native to South and Southeast Asia and introduced to the Hawaiian Islands of Hawaii and western Oahu. Males give a soft crow, other calls include low grunts and high-pitched squeals.
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