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Pendulous Nests. Pendulous nests usually have a round or oval nest area with a neck that suspends from the tip of a branch. The neck of a pendulous nest varies in length and width depending on the bird. Different birds create entrance holes in different areas of nest.
There are some types of birds that prefer different types of trees, or even different parts of the same tree, to lay their eggs and make their nests. If similar species of birds are in the area, they will choose a different location and they will not interbreed.