Animals that start with N

N is another single-entry letter, and the nightingale earns it. A male sings more than 180 distinct song types, some birds over 250, loudly enough to be heard a mile away on a still night. The birds singing after dark are unmated males. Once a female accepts a male, he largely stops singing, so a wood full of night song is a wood full of bachelors.

6 animals in the library start with N, from the narwhal to the numbat. Most of them live in Africa and Asia.