The darker the color, the more favorable the climate conditions are for survival. The outlined areas represent approximate current range for each season. More on reading these maps.
The Black Vulture is one of the New World’s most common birds. Flocks of hundreds can be seen soaring on hot air thermals from the East Coast of the U.S. all the way south to nearly the southern tip of South America. Audubon’s climate model projects that only 41% of this species' current breeding range will remain stable, even though new suitable area may become available farther north. It’s thought that severe winter temperatures are the main limiting factor in the northward spread of this species, so an average increase in winter temperatures may facilitate their spread north of the Ohio River.