the wind guides the bird better and helps it stay on path unless a horrible storm
The external structure is the wing. Its bones are so not heavy that the wind takes the bird up and allows it to fly.
The muscles in the birds body is the only thing that can let a bird fly. But oviously enough, if the wind is strong and blowing to the riht side, the wind l help
Birds don't necessarily need wind to fly. The flight can become easier when there is wind, depending on the circunstances, but that doesn't mean that a bird cannot fly in the absence of wind. It can become more tiring if the bird is adapted to flight with wind, but the movement of the wings still creates an upward and forward force that keeps the bird flying. For specifics about how do birds fly, search for that question.
the same way they help a bird fly
it does
They have hollow and very light bones, plus the lift from thier wings then they are beating both together give the bird the ability to fly
it doesnt
No. It would be better written, "The wings of the bird help it to fly".
the tail has flight feathers and the flight feathers help a bird to fly.
yes
fly
The wings help to cool the bird as well as to allow it to fly