It helps them be light enough to fly
birds!
there is more space between the bones so they can fly
it doesn't the lighter their wings are the easier they can fly
Yes they make the bird lighter.
Because they fly, there bones need to be hollow to cut down on there weight.
Yes, it makes them lighter so they are able to fly easier.
Most birds -- and all birds that fly -- have semi-hollow bones. Most reptiles, however, do not.
Solid Bones A+
i guess it could be in the way that birds have hollow bones
Having hollow bones makes the skeleton lighter, allowing for easier movement and flight in birds. Additionally, the hollowness provides strength and support without adding unnecessary weight.
In order for birds to fly they need light and often hallow bones. Because of this they can easily be broken and do not easily form fossils.
firs because they have hallow bones that allows them to fly and so they can get away from things that will try to eat them