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.
In foothills oak forests of the New Mexico–Arizona “sky islands” and the Big Bend area of Texas, family groups of Mexican Jays are sure to be found. They’re always on the move, it seems, but only locally; records of vagrants out of range are practically non-existent. The results of Audubon's climate model, showing a loss of 90 percent of current summer range, but large potential gains in both seasons, need to be viewed with caution. A majority of Mexican Jays keep their range in Mexico, outside of the model's analysis, making it difficult to understand what may happen with the species across its entire range. Even modest range expansions may not happen, as climatic shifts may be extremely stressful to this quite sedentary bird.