How to identify a ruby throated hummingbird in summer

Ruby-throated Hummingbird ID in Summer

In early spring, hummingbird feeders in eastern North America begin to swarm with Ruby-throated Hummingbirds, the males easily identifiable by their bright crimson throats and shiny green feathers. But eventually the red breeding plumage disappears, and the darting, sipping hummingbirds all start to look like… females? How did that happen? You might think the males […]