In the late 19th century bird populations in the United States declined drastically. That was obvious. William T. Hornaday, director of the New York Zoological Park, tried to quantify the bird losses. He published his numbers in 1899. The numbers varied state by state, from a low of 10 percent …
In the late 19th century bird populations in the United States declined drastically. That was obvious. William T. Hornaday, director of the New York Zoological Park, tried to quantify the bird losses. He published his numbers in 1899. The numbers varied state by state, from a low of 10 percent …
