Family Tanagers (Thraupidae)

Critically Endangered

Mangrove Finch (Geospiza heliobates)


Taxonomy

French: Géospize des mangroves German: Mangrovedarwinfink Spanish: Pinzón de Darwin manglero
Taxonomy:

Geospiza heliobates

Snodgrass and Heller

, 1901,

Tagus Cove, Isabela (formerly Albemarle Island), Galapagos Islands

.

See G. psittacula. Monotypic.

Distribution:

Two locations on NW Isabela I (Playa Tortuga Negra and Caleta Black), in W Galapagos Is. Previously more widely distributed on Isabela and Fernandina#R.

Descriptive notes

14 cm; 18 g. A medium-sized Darwin’s finch with typically short and weak tail, relatively long bill with arched culmen, nearly straight gonys. Male is nondescript... read more

Voice

Song a rollicking “chi’priip chi’prriip chi’prrip” or “ch-wee?... read more

Habitat

Dense and tall stands of mangrove.

Food and feeding

Feeds largely on arthropods, mainly insects and their larvae, especially beetles (Coleoptera), and spiders (Araneae); also some vegetable... read more

Breeding

Breeds during start of rainy season, from Dec/Jan, into May. Pair-bond may be kept from previous nesting seasons. Nest built by male, a... read more

Movements

Resident.

Status and conservation

CRITICALLY ENDANGERED. Rare, and extremely local. Total population estimated at 80–120 mature individuals, all within a tiny global range of just 1 km² on NW coast... read more

Recommended citation

Jaramillo, A. & de Juana, E. (2018). Mangrove Finch (Geospiza heliobates). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from https://www.hbw.com/node/62168 on 23 July 2018).