yellow bird on the branches covered with frost on the blue sky background

animal avian background beak beautiful bill bird birdwatching black bough branch british catch chizh close colorful covered diffused english erithacusrubecula europe european eye feather feathering finch forest frost garden hoarfrost migrantbird migratorybird nature ornithology passerine perch plumage pose singingbird siskin small songbird spring tree white wild wildlife wing winter yellow