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A probabilistic generalization of the pigeonhole principle states that if n pigeons are randomly put into m pigeonholes with uniform probability 1/m, then at least one pigeonhole will hold more than one pigeon with probability. where (m)n is the falling factorial m(m − 1) (m − 2)... (m − n + 1). For n = 0 and for n = 1 (and m > 0 ), that ...
Homing pigeon. The homing pigeon is a variety of domestic pigeon ( Columba livia domestica ), selectively bred for its ability to find its way home over extremely long distances. Because of this skill, homing pigeons were used to carry messages, a practice referred to as "pigeon post".
Pigeon keeping or pigeon fancying is the art and science of breeding domestic pigeons. People have practiced pigeon keeping for at least 5,000 years [1] and in almost every part of the world. In that time, humans have substantially altered the morphology and the behaviour of the domesticated descendants of the rock dove to suit their needs for ...
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Dovecote. A dovecote or dovecot / ˈdʌvkɒt /, doocot ( Scots) or columbarium is a structure intended to house pigeons or doves. [1] Dovecotes may be free-standing structures in a variety of shapes, or built into the end of a house or barn. They generally contain pigeonholes for the birds to nest. [2]
Throw the cat among the pigeons. Throwing (also putting and setting) the cat among the pigeons (also amongst the pigeons) is a British idiom used to describe a disturbance caused by an undesirable person from the perspective of a group. Another use of the term is to "cause an enormous fight or flap, usually by revealing a controversial fact or ...
"Cinderella", [a] or "The Little Glass Slipper", is a folk tale with thousands of variants that are told throughout the world. [2] [3] The protagonist is a young girl living in forsaken circumstances who is suddenly changed to remarkable fortune, with her ascension to the throne via marriage.
The kererū ( Hemiphaga novaeseelandiae) or New Zealand pigeon is a species of pigeon native to New Zealand. Johann Friedrich Gmelin described the bird in 1789 as a large, conspicuous pigeon up to 50 cm (20 in) in length and 550–850 g (19–30 oz) in weight, with a white breast and iridescent green–blue plumage.