We’ve seen eight species of hummingbirds in our short stay in Madera Canyon, AZ. One of the largest hummingbirds, the Blue-throated Hummingbird, AKA Blue-throated Mountain-gem according to Sibley Birds v.2, is one of the largest hummingbirds, more than four and a half inches in length. When this Mountain-gem arrived at the feeders its larger size made it instantly recognizable. Because it lacks the blue throat, this is a female or possibly a juvenile Blue-throated Mountain-gem. This gem made frequent visits to the feeders and would hover near them to give us time to photograph it. Then it would perch in the trees surrounding the area keeping an eye on the feeders while it waited to revisit them a few minutes later.