A bird beak is the most important resource it has, and every species has one solely designed for survival. Birds use beaks for just about everything: building nests, feeding their young ...
“normal” beaks (examples shown of a petrel and a gull) and a bird with a tactile bill-tip organ (a tinamou, close relative of ostriches and emus and which has an ancestral bill-tip organ ...
They use their wings to swim underwater instead. There are lots of different types of birds and they all have feathers, a beak, two legs and two wings just like Sophie the barn owl. Penguins are ...
The struggle is mainly about food -- different types of seeds -- and the availability ... the struggle to survive favored the larger birds with deep, strong beaks for opening the hard seeds.
This gives birds an evolutionary advantage by literally expanding their palates to eat different kinds of foods or use their beaks as a multifunctional tool. "Having a wiggly head like this really ...