Complex sentence: Nests consist of a mattress, supported on a strong foundation, and lined above with soft leaves and twigs, and are built in trees with a minimum diameter of and may be located at a height of.
Split into simpler sentences: Nests consist of a mattress, supported on a strong foundation, and lined above with soft leaves and twigs. Nests are built in trees with a minimum diameter of and may be located at a height of.