They have hollow bones
There are a few birds that can not fly. Penguins are one, ostrich, and most chickens can not fly either.
birds have strong chest muscles and lightweight bones, which enables them to fly. Their feathers, too, are lightweight, which helps them fly. During flight the birds feathers compress, giving it a more streamlined shape which helps it fly faster. Flight takes up a lot of energy, and birds must eat up to 30% of their body weight each day.
maybe but how birds fly birds fly by using there wings becuse feather make the birds fly bye love u by your boyfreaind or girlfreaind
they are light weight and have wings.
well, a bird that cant fly has a larger body mass than one that can
so they can fly
No, the weight of the airplane will not change when birds fly inside. The weight of the airplane is determined by factors like the total mass of the plane, fuel, cargo, and passengers - the presence of birds inside will not significantly impact this total weight.
Because they fly, there bones need to be hollow to cut down on there weight.
Kiwi birds are small birds with tiny wings. Their wingspan is incredibly small, measuring only 2" on their 20" long body. Their wings are too small to support their body weight, and unfortunately they cannot fly.
Birds have hollow bones to help them fly. Solid bones would add to much weight and make it impossible to fly.
It uses its curved wings. The whole of a bird's body structure makes it very light. It also loses its weight by pooing almost everytime. So it will be lighter and is able to fly more easily. Some birds' body structures are already too big and they cannot fly. Well the reason birds CAN fly is because they have hollow bones. There hollow bones makes them lighter. They also have a KEEL bone which is used to keep the bird upright so they don't fall over during flight. and pooing doesnt make any difference with the birds weight!!
They do not carry much weight - if they did, they wouldn't be able to fly. Everything about their bodies and way of life is aimed at low weight and high strength in the flight muscles.