Despite their tiny size, it's quite easy to tell these hummingbirds apart - and not just because the feeders are less than a dozen feet away from good viewing windows. The black-chinned hummingbirds have an iridescent purple band low on their throats, and their wings make a low hum. The broad-tailed hummingbirds have bright red throats and make a loud, metallic buzzing in flight. The rufous hummingbirds have bright orange plumage, including rusty-orange flanks and shiny orange throats, and they are the most aggressive of the hummers.
Females are more challenging to tell apart, especially because not all the gals are really gals - young males resemble females at first, but gradually develop their mature gorgets. As that color develops, I can tell who is who more effectively.
No matter which species, these tiny birds have the same goals at this time of year - claim the most nectar for themselves, gain weight quickly, and prepare for migration. It's amusing to see how tubby they can get, yet they still chase one another around the yard, diving and buzzing to defend the feeders that they all think belong exclusively to them. The females tend to be slightly more mellow - I might actually have two feeding at one time with only wary glares exchanged rather than vigorous chases - but even they have little tolerance for interference. I may even get buzzes and dirty looks when I step out onto the deck - how dare I get too close! But of course some individuals are more tolerant than others; two or three weeks ago, a female rufous hummingbird was so nonplussed about my presence that I was able to gently approach the feeder while she sat sipping, and she even let me lightly touch her tail before I got told off.
It's magical moments like those that make feeding birds all the more exciting. From one day to the next, you never know what birds may visit or how they will behave, and it's always worth watching and wondering. I know the hummingbirds will be gone in another two or three weeks, not to return until next spring, but when they do, their feeders will be waiting.
Are your hummingbirds still visiting? Learn when hummingbird migration is!