Pigeon
| Pigeon Temporal range: Early Miocene–recent |
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| Feral pigeon perched on a supply cable | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Aves |
| Clade: | Columbimorphae |
| Order: |
Columbiformes Latham, 1790 |
| Family: |
Columbidae Illiger, 1811 |
| Subfamilies | |
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| Geographic range of the family Columbidae | |
Pigeons and doves constitute the bird family Columbidae, which includes about 310 species.
Pigeons and doves are stout-bodied birds with short necks, and short slender bills (and in some species, these bills feature fleshy ceres). They primarily feed on seeds, fruits, and plants. This family occurs worldwide, but the greatest variety is in the Indomalaya and Australasia ecozones. In general, the terms "dove" and "pigeon" are used somewhat interchangeably. Pigeon is a French word that derives from the Latin pipio, for a "peeping" chick, while dove is a Germanic word that refers to the bird's diving flight. In ornithological practice, "dove" tends to be used for smaller species and "pigeon" for larger ones, but this is in no way consistently applied, and historically, the common names for these birds involve a great deal of variation between the terms. The species most commonly referred to as "pigeon" is the rock dove, one subspecies of which, the domestic pigeon, is common in many cities as the feral pigeon. Pigeons and doves are likely the most common birds in the world.
Doves and pigeons build relatively flimsy nests – often using sticks and other debris – which may be placed in trees, on ledges, or on the ground, depending on species. They lay one or two eggs at a time, and both parents care for the young, which leave the nest after seven to 28 days. Unlike most birds, both sexes of doves and pigeons produce "crop milk" to feed to their young, secreted by a sloughing of fluid-filled cells from the lining of the crop. Young doves and pigeons are called "squabs".
The adjective "columbine" refers to pigeons and doves.
The Pteroclididae (sandgrouse) were formerly included in the order Columbiformes largely due to their reported ability to drink by the "sucking" or "pumping" action of peristalsis of the esophagus ("The only other group, however, which shows the same behaviour, the Pteroclididae, is placed near the doves just by this doubtlessly very old characteristic." ); more recently, it had been reported that they cannot drink by "sucking" or "pumping", and were treated separately in the order Pteroclidiformes and were considered to be closer to the shorebirds. Recent phylogenomic studies support the grouping of these pigeons and sandgrouse together, along with mesites, forming the sister taxon to Mirandornithes.
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Wikipedia