it doesnt
Birds cannot fly at all without their feathers.
No
Birds have hollow bones to help them fly.
Without wings, birds couldn't fly.
they are light enough to fly
the tail has flight feathers and the flight feathers help a bird to fly.
They help them fly and also they keep them dry in the rain
It is not only birds that fly. Bats fly and they are not birds.
Nose weight often helps to bring the wings into flying attitude.
they are nocturnal birds that use their nose to help them sense their prey
Yes they make the bird lighter.
by being sturdy and keep birds wings not wet it just slides off