the eurasian blue tit cyanistes caeruleus is a small passerine bird in the tit family, paridae. it is easily recognisable by its

blue tit small bird yellow passerine plumage paridae eurasian nature wildlife branch beautiful animal wild colorful background feather cute european beak songbird natural ornithology tree birdwatching pretty closeup great color outdoor garden fauna perched tits watching sitting perching cyanistes caeruleus portrait major parus green wing one europe family paridae easily recognisable size