If you hike, chances are good that you've encountered a Gray Jay--a smart, impulsive, relatively tame bird that will approach looking for food crumbs from your snack or lunch. Gray Jays hide small caches of food throughout their territories in late summer and autumn so they’ll have a ready larder for winter. As such, they can survive cold winter conditions in which other birds can't exist. But now, studies show unseasonably warm weather is threatening Gray Jays' reproductive success.
