They are used to fly.
Eagles have well-developed wings that are strong enough to enable flight. A secondary function for nesting eagles is to shield the eggs or hatchlings from the elements.
No!
peacocks have short, hard and pointed beaks
they need long beaks to eat fish from the water
to choke
The peacocks eat wheat, grubs, green grass, cracked corn, insects and grains anything that could fit into its beak, so be sure that garbage and such as paper is not left in their habitat.
The peacock beak is often referred to as a "bill." In birds, the bill is the hard, pointed structure that forms the beak, which is used for feeding, grooming, and other activities. In the case of peacocks, their beaks are relatively short and straight, adapted for their diet of seeds, fruits, and small animals.
because
Peacocks (peafowl) get their food mostly on the ground like small snakes, lizards, frogs, bugs, flower petals, bananas, seeds, grains, and left out food by humans.
Feathers. A peacock has a very showy tail that he uses to entice a peahen into mating.
They use it to help them eat food.
To look good, and attract female peacocks.
A sparrow has a multipurpose short hard and round beak. This is used for eating, digging insects, and cracking seeds