Why are these birds found dead on the ground? In the Fall, many birds begin to migrate to warmer climates. While New York is mostly concrete and asphalt, large pockets of green space found within the likes of Central Park and Prospect Park support stopovers for these migrating birds where food and shelter is abundant. Butif this environment is so good for them, why did I find these guys on the ground in such a state? Check out this article to find out what is going on and why this is happening. This is an example of the effects that human activity have on the nature around us. Check out this other article that illustrates how a singular event can steer migratory birds off target and cause distractions.