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Hook-billed Hermit - BirdForum Opus

Revision as of 10:00, 12 June 2007 by Kits (talk | contribs)
Glaucis dohrnii

Identification

12 cm. Dull coloured hermit hummingbird. Greenish-bronze upperparts. Cinnamon underparts. White supercilium and malar, with dusky face and lower border to malar. Metallic bronze tail with outer rectrices tipped white. Almost straight bill with whitish mandible. Voice Descending high-pitched phrase. 2007 IUCN Red List Category (as evaluated by BirdLife International - the official Red List Authority for birds for IUCN): Endangered. Justification This species qualifies as Endangered owing to the massive deforestation throughout its range which has reduced it to a few fragmented subpopulations likely to be declining as a result of continued habitat loss.

Distribution

Glaucis dohrnii occurs in east Brazil, where it is known from a few widely scattered localities in Bahia and Espírito Santo. There are historical sight records from extreme east Minas Gerais where its occurrence is supported by records from adjacent Espírito Santo. Rio de Janeiro has been included in the species's published range based on a specimen labelled Rio de Janeiro. In Bahia, there are recent reports from only three sites: Estação Veracruz (formerly the CVRD Porto Seguro Reserve, where it was found relatively frequently during 1993-19974), Monte Pascoal National Park (a few recent records), and adjacent to Serra de Itamaruja (one in July 19933). In Espírito Santo, there is just one recent record (in 1988), from Linhares Forest Reserve, but it has not been seen subsequently. Possible records of birds at two further sites (Bralanda and Barrolândia) are being verified. It is likely that the species has never been common, but it has undoubtedly declined significantly in numbers and distribution.

Taxonomy

Habitat

It occurs humid forest, particularly along streambeds with flowering Heliconia. It is generally seen in the forest interior, but has been recorded visiting ornamental flowers in areas adjacent to forest.

Behaviour

It is reported to breed from September to February.

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