Thứ Sáu, 25 tháng 12, 2020

Pigeon bird cage | Magpies Robin

Pigeon bird cage | Magpies Robin
The rock dove, rock pigeon, or common pigeon is a member of the bird family Columbidae (doves and pigeons) In common usage, this bird is often simply referred to as the "pigeon".

The domestic pigeon (Columba livia domestica, which includes about 1,000 different breeds) descended from this species. Escaped domestic pigeons have increased the populations of feral pigeons around the world.

Wild rock doves are pale grey with two black bars on each wing, whereas domestic and feral pigeons vary in colour and pattern. Few differences are seen between males and females. The species is generally monogamous, with two squabs (young) per brood. Both parents care for the young for a time.

Habitats include various open and semi-open environments. Cliffs and rock ledges are used for roosting and breeding in the wild. Originally found wild in Europe, North Africa, and western Asia, pigeons have become established in cities around the world. The species is abundant, with an estimated population of 17 to 28 million feral and wild birds in Europe alone and up to 120 million worldwide.
Columba livia in India
The rock dove was first described by German naturalist Johann Gmelin in 1789.[8] The genus name Columba is the Latin word meaning "pigeon, dove", whose older etymology comes from the Ancient Greek κόλυμβος (kolumbos), "a diver", from κολυμβάω (kolumbao), "dive, plunge headlong, swim". Aristophanes (Birds, 304) and others use the word κολυμβίς (kolumbis), "diver", for the name of the bird, because of its swimming motion in the air. The specific epithet is derived from the Latin livor, "bluish". Its closest relative in the genus Columba is the hill pigeon, followed by the other rock pigeons: the snow, speckled, and white-collared strasser pigeon
The official common name is rock dove, as given by the International Ornithological Congress. Pigeon chicks are called squabs.

The rock dove was central to Charles Darwins discovery of evolution, and featured in four of his works from 1859 to 1872. Darwin posited, that despite wide ranging morphological differences, the many hundreds of breeds of domestic pigeons could all be traced back to the wild rock dove; in essence human selection of pigeon breeds was analogous to natural selection.

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