Imagine wandering through a sunlit forest, your eyes catching a flash of color or a curious structure nestled in the branches ...

If the female bird likes it and they mate, a nest is built for laying eggs. The young birds are then hatched there. Weaver ...

No more popular proof has been brought forward by the supporters of the blind instinct theory than that of bird-architecture ... with forming a rudimentary structure—heaping a lot of material ...