cassin`s finch perching on a pole

america animal aspen aves avian berry bill bird birdwatching brown cassin cassini cassinii common conifer crisp eater evergreen feather female finch foraging forests fringillidae fruit haemorhous heavy long mountains nature notched ornithology passerine perched perching pink purple quaking rosefinch rosy seed sitting songbird streaked streaks tail underparts wildlife wings