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Ask an expertDo you have a burning question about birds and wildlife? Challenge our experts to explain what's always left you bamboozled. We will answer one tricky question a week. Why don't birds fall off their perches when they sleep? Alan Thompson, Wales
Lee answers... When a bird lands on a perch, tendons in their legs tighten and so their toes lock around the perch. This involuntary reflex keeps a sleeping bird from falling off a perch. |
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