Because all birds live in different environments and weather conditions.
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Birds feathers have evolved to serve a number of purposes, the most important of which are warmth and flight. The feathers need for warmth have to be small, soft and fluffy while the feathers needed for flight have to be large, strong and sleek.
Birds have feathers that are different colors for many different reasons: like getting a mate,fighting off enemies,etc.
The oil in their feathers makes them like that.
Yes. Some types of birds (like ducks) moult all their feathers at once and so have a period when they cannot fly. Other change one or more feathers at a time and can always fly.
All birds have feathers and birds are the only animals that do!
no they have feathers
Birds are the only things that have feathers and hollow bones.
It reduces competition between different birds
All birds have a body covering of feathers. It is sometimes referred to as the bird's plumage.These feathers may be different in structure, depending on the species, but having a body covering of feathers is one of the defining characteristics of birds.
Feathers.
You will need to be much more specific. I could tell you any time between a week and a year, because there are so many different types of birds.
Yes. Birds are animals that have feathers.
All owls are covered with feathers of different colors.
contour feathers,flight feathers,primary feathers and secondary feathers
For each individual tribe, we have different meanings for different feathers.
There are several different kinds of feathers: bristle, semiplume, filoplume, down, feathers with vanes like the contour and flight feathers.
Birds dont have fur they have feathers, which are different to fur.
Some different species of birds
Yes, most bird species' feathers are distinctly different from other birds' feathers.
Yes. Some types of birds (like ducks) moult all their feathers at once and so have a period when they cannot fly. Other change one or more feathers at a time and can always fly.