there are many shapes and size of beaks
birds have beaks or bill instead of jaw with teeth
other birds have tails that are rounded, pointed or square
some birds have forked tails
a bird's tails is made of short and long feathers
others have short wings that they flap quickly when they fly
some birds have long wings for soaring and gliding
a bird's wings are also covered with feathers
the feathers of birds are green, red, blue, black and other beautiful colours
most birds lose their feather and grow new ones every year