Ornithologists know long ago that separate bird species are capable to make single sounds and even to sing not only a throat, but also other parts of a body. For example, rhythmically to click a beak. And some birds went further and learned to publish the marriage songs a tail. Among them there are a snipe and Anna's humming-bird.
Snipe
The snipe is a medium-sized bird, about 25-30 cm in size. She has direct sharp and very long beak. She prefers swamps, coast of reservoirs, crude meadows and the tundra. For nesting prefers a subarctic and temperate climate. Arranges nests on the earth in small poles.
This bird is called still "a forest lamb", "a heavenly lamb" or "a God's goat" for characteristic sounds which males of a snipe make during a marriage tokovaniye. During this period the snipe rises by height up to 100 m and from there dives down. Falling, he puts wings a little and shakes them. At the same time the snipe holds a tail opened. Then the male turns over in air, and feathers of his tail begin to vibrate in an air flow, making the sound reminding bleating of a ram.
Humming-bird of Anna
Anna's humming-bird, to be exact, Anna's kalipt — a bird of family of a humming-bird. The bird received the name in honor of Anna Massena, the duchess de Rivoli whose husband was amateur ornithologist. The bird meets on all Pacific coast of the USA. As well as all representatives of this look, Anna's kalipt of very small size – only 10 cm. Males of a humming-bird of Anna are able to sing a throat, but during a tokovaniye make sounds, attractive to females, a tail. For this purpose the male rises by height about 30 m and on a concave arch dives towards a female. At the same time he flies against sunlight to show to the darling all beauty of the lilac plumage. Flying over a female, he sharply spreads a tail which he only maneuvered before. At this moment the speed of its flight reaches 80 km/h, and outer sides of steering feathers of a tail begin to vibrate small as a clarinet cane. At the same time very shrill and sharp whistle sounds. Its frequency about 4 kHz also lasts it only 1/20 seconds.
Other bird species
It should be noted that not only these bird species use a tail in the marriage songs. According to ornithologists, the Virginia goatsucker who is also called twilight is capable to make the sounds similar to ""bleating"" of a snipe. And the paradise vdovushka shakes and rustles with the tail, using it as music. In this way uses the plumage and a pyrotail. Besides there are some representatives of family bekasovy on which current singing the scientists argue still. For example, not clearly, what origin the marriage song of a jacksnipe, - guttural or tail.