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A bird being light weight helps them to be able to fly. The fact the birds bones are hollow, feathers are light, and wingspan is only feathers helps them be able to soar the skies.
Because each is a pound. If it helps to visualize it, think of a pound of books being a small box and a pound of feathers being a very big box.
The color of the penguin's feathers helps them to avoid being detected by predators when they are underwater.
Peacocks use their colourful display of feathers and long fan-like tail to attract the drabber female peahens for mating. The peahen incubates the eggs on the nest, so being drabber helps to avoid being noticed by predators.
No, they don't....... jk! all birds have feathers... it helps them do a lot of neat stuff
water proof feathers
In between contour feathers is a patch of bare skin called the apteria. Down feathers develop in the apteria preserving air trapped under the contour wings. Downy feathers are shaped of a incredibly unfastened structure that is flexible and helps trap air close to the bird.
it is feathers
It helps them get warm in the winter.
They shed feathers like a dog sheds hair. The feathers are replaced with new ones. This helps keep the bird in tip top shape for flying.
yogurt is good to have in a packed lunch because yogurt is high in calcium and calcium helps with healthy bones.
From what I've read, i believe that ostrich feathers were use for fans for the Pharaoh of Egypt. Hope it helps :)