to keep them warm and to keep water away from they re body
yes to keep warm
by blending in with there colors in the water.
Puffing the feathers out traps more air. Air is a good insulator (it doesn't transfer heat well) so when they puff their feathers out it helps to keep them warm.
Well, all birds puff up. The bird will puff up to rearrange feathers out of order, and to let out warm air against its skin that has been trapped by the feathers.
By puffing out their feathers in the cold birds create a larger insulating layer of air and feathers, which helps them retain body heat. Many mammals do the same with their fur.
The characteristics of a bird is that is has feathers as its outer covering ,beak ,wings.The ability to fly is actually an exception. Most birds can fly while some bird's can't. Penguin is one of those exceptions which can't fly. Other examples will be ostrich and emu.
They are fairly short and drag on the ice when the penguin stands up.
Penguins appear black due to their dense coat of feathers that are actually dark blue or gray in color. This coloration camouflages them when swimming in the ocean against predators looking up from below.
it means that they are cold, and they fluff up for warmth. i have a fat quaker bird :]
A pheasant will puff up (as will most birds) when it gets cold. When a pheasant puffs up, it traps air between it's feathers and body, which acts as insulation to keep the bird warm. It may also be an indication the bird is not feeling well. When birds get sick, they feel like they are cold, even if the weather is warm.
small feathers which are covered with a thin layer of light oil. When they are cold, they ruffle up these feathers and a pocket of air is formed.blubber also helps to keep the heat in and keep the cold out.
Normal fish do not puff up- only puffer fish.