gran canaria blue chaffinch

and animal animals antenna antennae antennas biodiversity biosphera bird birds blue canaria canary chaffinch chaffinches color colors colour colours cumbre diversity endangered endemic fauna female females finch finches fringilla gran island islands juvenile juveniles mark marked marks natural nature nublo ornithology park passerine passerines polatzeki radio radiomonitoring ring ringed rural spain species tejeda threatened transmitter transmitters vertebrate vertebrates wild wildlife young zoology