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Because they have a good balance skill called hypmitosis.
Another answer:
For birds to grasp something with their feet all they need to do is relax their muscles. It takes muscle strength to open their grasping feet. So, when they go to sleep (and relax) their grasp actually tightens rather than loosens.
What else can I help you with?
Why do birds sit together on telephone lines?
For a start, most telephone wires are insulated and carry little or no electricity so, apart from falling off and hurting themselves, they won't get hurt on telephone wires. Really, you should have asked about why birds don't get hurt on overhead electrical wires. The answer is fairly simple really - to get electrocuted from those wires you need to complete the circuit, in this case touch the ground, for the electricity to surge through the body. Birds only sit on the wire and do not touch the ground, so they can't be electrocuted.
Why dont birds tip over when they sit on telephone wires?
birds have special tendons that allow them lock around the perch. With tendons located behind their ankle and in front of their knee, they weight of their body stretches the tendons so they lock around the perch
Why don't birds get shock while they sit on electric transmission wires?
no they dont
Are birds afraid of the dark?
i dont know i have a bird and it wont go to sleep when the lights on so i guess no
What are the names of the birds that dont fly and sleep on the ground?
penguin ostrich chickens hens roosters emus the phillie phanatic fat birds of any specie
When climbing a telephone pole what is one very important feature to remember?
Dont touch the wires or let go of the pole. Have fun doing illegal things friend!
What kind of penguins can sleep on water?
No penguins can sleep on water.
Where was the first telephone made at?
i dont no
Where do vapires sleep?
vapires dont sleep
What does a panda sleep in?
They dont sleep in ennything they sleep on rocks and under trees.
Who is the animal not sleep hole life?
its the sharks the sharks dont sleep ever they can low the energy that goes to the brain so they rest but they dont sleep and they dont stop from swimming
What does Let The Birds Fly mean?
it means dont try to change someone. let the birds be birds and do what birds do...
