Ключевые слова: animal, april, bird, birding, birdlife, blue tit, branch, courtship, cyanistes caeruleus, devon, evening, garden, insectivorous, isolated, isolated on white, leaf, mouth open, nature, one animal, outdoors, passerine, perched, romantic, seduction, singing, singing bird, small, song, spring, tiny, tree, tweeting, vertebrate, voice, whistling, white background, wild animal, wildlife, yellow,