Why do birds have such diverse beaks and paws?

There is a wide variety of birds on our planet, which have completely different beaks and lower limbs.
But why do birds need such a variety of shapes?
The answer lies in what serves as food for these birds.
Birds of prey have hooked beaks with a sharp end to rip and finish off caught food. Or, for example, the toucan has a large, heavy beak that helps it develop large fruits.
Bird paws also differ from each other depending on the habitat and their purpose.
For example, aquatic birds have membranes between their toes, birds of prey have sharp long claws, and ostriches have long, strong legs.