PA - Physician Assistant Humming bird capital of the USA The Community - Sierra Vista, AZ World-renowned for birding and military history, we also have caving, hiking trails with varying difficulty ratings, outstanding mountain biking trails, observatories, hang gliding and ballooning, symphonies and ballets, rodeos and cowboy music gatherings, and vintage car shows. And that's not all. There are golf tournaments, festivals and events, banding, and mid-western style summer concerts in the park. And to whet the palate, we have award-winning wines at our area vineyards - enjoy the grape stomping during the fests in the spring and fall. Winter brings snow on the mountains; autumn color splashes reds, oranges and yellows reminiscent of New England; and spring heralds the wild flowers and hummingbirds. At an elevation of 4,623 feet surrounded by mountain peaks reaching nearly 10,000 feet, Sierra Vista enjoys a moderate four-season climate teeming with wildlife and abundant sunshine. Sierra ...