Rock Dove

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The Rock Dove or The Rock Pigeon Columba livia) is a bird. it is often simply referred to as the "pigeon".
Wild rock doves are grey with two black bars on each wing, whereas pigeons vary in colour and pattern.
Description
The adult of the rock dove is 29 to 37 cm (11 to 15 in) long with a 62 to 72 cm (24 to 28 in) wingspan. It has a dark bluish-grey head, neck, and chest with glossy yellowish, greenish, and reddish-purple iridescence along its neck and wing feathers. The iris is orange, red, or golden with a paler inner ring, and the bare skin round the eye is bluish-grey. The beak is grey-black and the feet are purplish-red.
In its flight, behaviour, and voice, which is more of a coo than the phrase of the wood pigeon, it is a typical pigeon. Although it is a strong flier, it also glides holding its wings in a very pronounced V shape as it does. As prey birds, they must keep their vigilance, and when disturbed a pigeon within a flock will take off with a noisy clapping sound that cues for other pigeons to take flight. The noise of the take-off increases the faster a pigeon beats its wings,
Vocalizations
The call is a soft, slightly wavering coo Variations include an alarm call, a nest call, and noises made by juveniles.
Non-vocal sounds include a loud flapping noise at take-off, feet stomping, hisses, and beak snapping. Wings may also be clapped during flights, usually during display fights or after copulation. Juveniles snap their beaks, usually to respond to nest invasion.