This was a nervous female that arrived with her two young. All three arrived in the yard at the same time. Her children scattered in opposite directions, got into everything, chased each other, poked at every color they could see and created severe anxiety for her. She flew back and forth, making sure they weren't in any trouble, and eventually they all settled down in the same tree together.(The mother is in the bottom right).
The mother separates herself from her young very shortly after leaving the nest with the young. They develop their independence quickly as they learn how to feed, and what to feed from. The minor battles between the siblings turn into intense battles with other hummingbirds, and in no time at all they are fully cable of taking care of themselves, being equipped with abilities far exceeding anything of any other birds. Lessons are taught right up until the time she leaves her young, and they will be ready for life.
August 2015, N.E. of Edmonton, Alberta, Canada.