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Plucking post : ウィキペディア英語版 | Plucking post
A plucking post is a raised structure such as a tree stump which is used regularly by a bird of prey to dismember its prey, removing feathers and various other inedible parts before eating it.〔(A Plucking Post )〕 == Purpose ==
The elevated nature of the post allows for a safer landing with the heavy load of the prey, as well as being a good vantage point to scan for other predators, while the bird is vulnerable, involved in the relatively complex process of plucking and feeding upon its prey. Many owls use plucking posts for prey that has been caught on the ground. Barred owls often use old nests for the purpose.〔Lynch, p.115〕 Plucking posts are used by barn owls which hunt by flying low and slowly over an area of open ground, hovering over spots that conceal potential prey. The barn owl feeds primarily on small vertebrates, particularly rodents. The common buzzard is another user of plucking posts and has an even more varied diet than the barn owl. The sparrowhawk flies low over the ground, skimming hedges and fences, but staying close to cover so that it can rapidly pounce on its victims. In woodland its agility enables it to fly swiftly between the trunks and branches.〔(Sparrowhawks )〕 In New Zealand the New Zealand falcon takes its catch to a plucking post to dislocate the bird's neck using the notch on its bill that all falcons have. It then plucks the feathers before eating the entire bird.〔(New Zealand falcon )〕 Plucking posts are ideal places for setting up bird hides, thus allowing a close observation of bird of prey feeding behaviour.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Plucking post」の詳細全文を読む
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