gran canaria blue chaffinch in a bird feeder

animal animals biodiversity biosphera bird birds blue canaria canary chaffinch chaffinches color colors colour colours cumbre diversity eat eating endangered endemic fauna feed feeder feeders feeding finch finches food fringilla gran island islands juvenile juveniles male males mark marked marks natural nature nublo ornithology park passerine passerines polatzeki ring ringed rural spain species tejeda threatened vertebrate vertebrates wild wildlife young zoology