A coal tit and a Blue tit compete for food on a peanut bird feeder

bird feeder coal tit periparus ater titmouse parus ater passerine garden birds periparus beak blue tit parus birdwatching ornithology bird wildlife plumage songbird biodiversity tit animal ater feather environment small british wood nature branch germany wild european background coal garden winter cold sitting beauty isolated beautiful tree single yellow forest snow green black gray white