Family Finches (Fringillidae)

Endangered

Gran Canaria Blue Chaffinch (Fringilla polatzeki)


Taxonomy

French: Pinson de Grande Canarie German: Gran-Canaria-Fink Spanish: Pinzón azul de Gran Canaria
Taxonomy:

Fringilla teydea polatzeki

E. J. O. Hartert

, 1905,

Gran Canaria

.

Until recently considered conspecific with F. teydea, but initial molecular evidence#R precipitated an integrative study#R also demonstrating minor plumage, medium morphometric and major vocal distinctions: differs mainly by its often more distinct velvet-black band above bill-base (ns); much paler, virtually white, tips to wing-coverts and more white on belly and flanks (2); paler, greyer blue on upperparts and breast (1); smaller size (effect size for male wing based on published data#R –3.69, score 2); higher frequency range in song (effect size on published data#R 4.22, score 2); and greater frequency change from start to end of first phase of song (effect size on published data#R 9.11, score 3). A score of 11 was reached by independent assessors#R. Monotypic.

What do (1) and (2) mean? Learn more about the scoring system.
Distribution:

Gran Canaria, C Canary Is.

Descriptive notes

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Recommended citation

del Hoyo, J. & Collar, N. (2017). Gran Canaria Blue Chaffinch (Fringilla polatzeki). 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/1344121 on 24 November 2017).