Friday, March 18, 2016

Roost or Murder?

Crows gather in the late afternoon near Swan Lake in Saanich...
strange murder indeed 
there are no criminals here...
no victims either

A group of crows is known as a murder, although that's strictly a poetic affectation that was first used in the 15th century. Scientists would still refer to the collective as a flock.

A roost is a gathering of birds for a specific purpose, typically to sleep together at night though they may forage as individuals during the day. It may be a survival mechanism decreasing the odds that any particular bird will be picked off by a predator. Another theory suggests that, like humans, individual birds will end up gathering wherever there's an ideal sleeping spot protected from the elements, close to a nearby food source, whatever.

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