She chooses a nest site, builds a nest, incubates eggs and raises the baby hummingbirds all on her own. The males don’t play a role. She’s doing all this while trying to keep herself fueled ...

Hummingbirds use spider silk to make their nests. Richard Darby MCT How to identify a Ruby-throated hummingbird Ruby-throated hummingbirds are typically the size of an average hummingbird (small ...

Some volunteers trap the birds while others identify the species, record fat levels and other indicators of overall health, note whether the bird carries an egg, and attach the tiny tracking band.