This includes 'Amistad' because it blooms into this important season when hummingbirds are doubling their body weight before their migration, says Kathi. Some of my favorite hummingbird flowers ...

In a study published Monday in Proceedings of the National Academy of Sciences, the team discovered that flower mites can sense the same kinds of modulated electric fields that hummingbirds create ...

Their territorial fury is especially aimed at other hummingbirds. Competition over a patch of flowers or a mate often results in high-speed aerial chases, divebombing and beak jousting.