| Activity | He co-founded the American Ornithologists' Union (AOU). In 1880, he became assistant in charge of the collection of birds and mammals in the Boston Society of Natural History, and in 1885 became curator of mammals and birds at the Museum of Comparative Zoology at Harvard University, where he served until his death, though after 1900 he cared for birds alone, and he left his position at the Boston Society of Natural History in 1887.[3][4][2] He also devoted substantial time to his own private museum of ornithology. Tring correspondent |