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Bay-crowned Brushfinch Atlapetes seebohmi Scientific name definitions

Alvaro Jaramillo
Version: 1.0 — Published March 4, 2020
Text last updated January 1, 2011

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Introduction

The Bay-crowned Brush-Finch is a more olive-grey backed brush-finch but has the classic dark face sides and a bright chestnut crown stripe, although the forehead itself is black. Below it has a white throat with the typical brush-finch pattern of a white malar stripe, and dark lateral throat stripes; the breast and flanks are grayish while the rest of the underparts are whitish except for the pale buff vent. It likes undergrowth in low scrubby montane woodland, also shrubby hillsides that reach only to chest high, in rather dry regions between the elevations of 1150 – 2800m. Where it overlaps with the White-winged Brush-Finch, this is a noticeably larger species with a noticeably darker crown stripe and no white wing patch. It may in fact be closely related to the southern Rusty-bellied Brush-Finch although that species is much more subdued in coloration. The Bay-crowned Brush-Finch breeds in the rainy season and forages in dry leaf litter, scratching on the ground. Food includes seeds as well as insects.

Field Identification

16–17 cm. A large-bodied brush-finch with deep-based, long and strong-looking bill. Nominate race has deep rufous crown to nape, contrasting with a entirely black face (extending to forehead); throat and moustachial region white, chin black and continuing as short black malar stripe (this stripe ends half-way down side of throat); upperparts olive-grey, upperwing and tail slightly darker, white edge at bend of folded wing (marginal coverts); light grey breastband, palest at centre, the grey extending down flanks and becoming olive-grey on rear flanks; lower breast and belly whitish, becoming buffy on crissum; iris dark red-brown; bill black; legs greyish. Sexes alike. Juvenile is browner above than adult, throat and belly buffy, breast and flanks indistinctly streaked. Race simonsi has rufous forehead, is darker grey than nominate, and has small whitish supraloral spot; celicae is like previous, but smaller, with small amount of black on forehead, throat washed buffy.

Systematics History

Editor's Note: This article requires further editing work to merge existing content into the appropriate Subspecies sections. Please bear with us while this update takes place.

Often considered conspecific with either A. schistaceus or A. nationi. Race celicae, known from a single specimen, perhaps just an aberrant individual of simonsi (1). Three subspecies recognized.

Subspecies


SUBSPECIES

Atlapetes seebohmi celicae Scientific name definitions

Distribution

W Loja (region of Celica), in SW Ecuador.

SUBSPECIES

Atlapetes seebohmi simonsi Scientific name definitions

Distribution

C and E Loja, in S Ecuador and Tumbesian Peru (2).

SUBSPECIES

Atlapetes seebohmi seebohmi Scientific name definitions

Distribution

Pacific slope of Andes in NW Peru (S to Ancash).

Distribution

Editor's Note: Additional distribution information for this taxon can be found in the 'Subspecies' article above. In the future we will develop a range-wide distribution article.

Habitat

Undergrowth in low scrubby montane woodland, also shrubby hillsides with low vegetation (reaching only to chest height), in rather dry regions; 1150–2800 m.

Movement

Resident.

Diet and Foraging

Stomach contents have included large insects, as well as seeds and fruit. Forages close to ground; also drops to ground and scratches in leaf litter. Generally in pairs or small groups.

Sounds and Vocal Behavior

Song a quickly delivered “chew-chew wit-chew” or shorter “chew-chew’trrrrr”. Call a high-pitched “tsiip”; also a sharp “piit” or “put”, repeated quickly when alarmed.

Breeding

Known to breed during rainy season, approximately Mar–May. No further information available.
Not globally threatened. Restricted-range species: present in Tumbesian Region EBA. Uncommon to locally fairly common. Because of its relatively extensive range, local abundance and lack of any specific threats to populations, this species is considered not to be at any immediate risk.

About the Author(s)

Alvaro began birding as an 11 year old in Canada, and eventually trained in Evolutionary Ecology studying, creatures as varied as leaf-cutter ants and Argentine cowbirds. But his career has been focused on birding tourism, both as a guide and owner of his tour company, as well as a avitourism consultant to various organizations. He is the author of Birds of Chile, New World Blackbirds: The Icterids, as well as the ABA Field Guide to the birds of California. He lives in Half Moon Bay, California where he is known for his pelagic birding trips. Email: alvaro@alvarosadventures.com.

Distribution of the Bay-crowned Brushfinch - Range Map
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Distribution of the Bay-crowned Brushfinch

Recommended Citation

Jaramillo, A. (2020). Bay-crowned Brushfinch (Atlapetes seebohmi), version 1.0. In Birds of the World (J. del Hoyo, A. Elliott, J. Sargatal, D. A. Christie, and E. de Juana, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.bcbfin1.01
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