Gran Canaria Blue Chaffinch Fringilla polatzeki

Family: Fringillidae (Finches)

Authority: (Hartert, 1905)

Red List Category

Criteria: D

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Justification of Red List category

This species has a very small range, and occurs in a small number of locations, therefore it approaches the thresholds for Vulnerable under the range size criterion B, and meets the threshold for Vulnerable under criterion D2, as the plausible threat of fire is present in all the areas it inhabits. The population trend appears to be increasing, and hence the species does not approach the thresholds for Vulnerable under the population size reduction criterion (criterion A). The probability of extinction has not been calculated for this species, therefore criterion E cannot be applied. The population size is very small, and approaches the thresholds for Vulnerable under the population size criteria C and D. However, the population size has only increased and exceeded the threshold for Endangered under criterion D within the past five years. Considering this and the high risk of fire, which threatens the species' habitat, its previous status of Endangered is maintained under the 5-year rule. 

Population size: 430 mature individuals

Population trend: increasing

Country endemic: yes

Recommended citation
BirdLife International (2023) Species factsheet: Fringilla polatzeki. Downloaded from http://datazone.birdlife.org/species/factsheet/gran-canaria-blue-chaffinch-fringilla-polatzeki on 04/12/2023.
Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from http://datazone.birdlife.org on 04/12/2023.