Hummingbirds are usually very small and and very fast. The Blue-throated Mountain Gem is an exception. Until last year, it was called the Blue-throated Hummingbird. It is the largest hummingbird in North America and it has noticeably slower wingbeats. Of course it can disappear in an instant as all hummers do but this beautiful bird seemed to hover and move more slowly than the smaller hummers in Madera Canyon and we had more time to focus on it than most of the other hummers there.