The Costa’s Hummingbird is commonly found in the desserts of California and Arizona. It leaves the dessert during the hottest days of summer and can then be found to have moved to a shrub, woodland, or chaparral habitat.
One interesting fact about the Costa’s Hummingbird, when it is in a torpid state, its heart rate is only about 50 beats per minute. When the bird is not in a torpid state and it is resting, the Costa’s hummingbird usually has a heart rate of between 500-900 beats per minute.
This information comes from the Cornell Lab of Ornithology.