This photo is of a male Ruby-throated Hummingbird that visits my feeder and this is his favorite perch. He hasn’t had to do much this year in keeping other Hummingbirds away because I don’t have the numbers of these birds like I did last year. I do have a female Ruby-throated Hummingbird and I posted her photo a couple of days ago (2016 Ruby-throated Hummingbird).
Trying to photograph the red iridescence throat patch of the male Ruby-throated Hummingbird is difficult. You have to be at the right angle to see it and it will change fast as the bird moves.
Ruby-throated Hummingbird Facts
Ruby-throated hummingbirds are solitary. Adults of this species are not social, other than during courtship (which lasts a few minutes); the female also cares for her offspring. Both males and females of any age are aggressive toward other hummingbirds. They may defend territories, such as a feeding territory, attacking and chasing other hummingbirds that enter.
Males arrive at the breeding area in the spring and establish a territory before the females arrive. When the females return, males court females that enter their territory by performing courtship displays. They perform a “dive display” rising 8 – 10 feet above and 5 – 6 feet) to each side of the female. If the female perches, the male begins flying in very rapid horizontal arcs less than 1.6 feet in front of her. If the female is receptive to the male, she may give a call and assume a solicitous posture with her tail feathers cocked and her wings drooped.
The vocalizations of ruby-throated hummingbirds are rapid, squeaky chirps, which are used primarily for threats. For example, males may vocalize to warn another male that has entered his territory.
During the courtship displays, the male makes a rapid tik-tik tik-tik tik-tik sound, apparently with his wings. The sound is produced both during the shuttle display, at each end of the side-to-side flight. Also, the sound is made during dive displays. A second, rather faint, repeated whining sound is sometimes produced with the outer tail-feathers during the dive, as the male flies over the female, spreading and shutting the tail as he does so. (Wikipedia)