We love to watch humming birds. They can be so territorial. We used to get a flock of them in our yard twice a year when we had a huge scarlet colored bottlebrush tree. They came in the spring on the way back up north and the fall going south. We hardly ever see any since we had to remove the tree because it was always loaded with all types of bees. My DH is allergic to bee stings. Some of those bees were giant sized yellow and black bumble bees. I almost cried when the tree service guy cut the tree down. It was the biggest and tallest one we had ever seen at at least 12 feet tall and almost 10 feet wide. I'm allergic to the fragrance of most flowering trees, but the bottlebrush didn't smell at all. It was always in bloom except for two weeks after Hurricane Ivan attacked it. The flowers came right back though. We had it for at least five years.