a brood of great tit chicks

angry animal beast behavior bird birdhouse birdlife birds box breeding broad brood cavity chick chickadee chicken chicks clutch cover development favorite feather feathered feeding fowl garden great head hisses incubating major moves nest nesters nesting nestlings oxeye parus peeper plumage removable reproduction snake songbird spring study tail tit titmice titmouse tomtit wild wildlife yellowmouth