Fall ushers in new frontiers for wildlife photography. The shortening of the days profoundly affects both plants and animals, and there’s a sense of quickening to everything, an urgency in the air that’s contagious. Fall wildlife photography provides perhaps the best opportunity to show the connection between animals and their habitats in colorful, vivid ways. A great gray owl hunts in shade against a backdrop of sunlit fall foliage in Wilson, Wyoming. It’s a crucial season for wildlife in North America. Animals are either preparing for migration with its host of challenges or hunkering down in place for winter and the lean, hard times that season inevitably means for any creature that lives outdoors 100 percent of the time. Blue jays...