[latin] Amaurospiza carrizalensis | [UK] Carrizal Seedeater | [year] 2003 | [status] CRITICALLY ENDANGERED

Carrizal Seedeater new species



Male is glossy blue-black with sooty black wings and brighter blue shoulder.Underwing coverts and axillars are white. Bill is large, deep and conical, dark grey. Female is light buff-brown with an olive-grey bill. Similar spp separable from other Amaurospiza by the denisty of colouration and black flammulations on the breast as well as overall size. Amaurospiza carrizalensis was recently described following collection of the holotype on Isla Carrizal in the Río Caroni, Venezuela. Since then its habitat on the island has been destroyed in the development of Guri Dam. It has not been recorded elsewhere so is assumed to have an extremely small population and to be declining as other potentially suitable habitat continues to be destroyed. However, the low number of records may be partly due to the difficulty in surveying its habitat, which as a result has rarely been explored. It has only been found in stands of spiny Guadua latifolia and Ripidocladus sp. bamboo forest. Its bill shows some degree of specialisation for feeding. From stomach content analysis of collected specimens it is known to feed on weevil spp. which may be specific to its spiny forest habitat. Habitat at the only known locality was all destroyed during the development of the Guri Dam, which subsequently flooded this location. This development also destroyed other potentially suitable habitat in this area. Continuing forest clearance is likely to remain a threat to any other populations that exist. (birdlife.org).

A NEW SPECIES OF AMAUROSPIZA BLUE. SEEDEATER FROM VENEZUELA. Miguel Lentino and Robin Restall. The Auk 120:600 (2003)

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