Many male hummingbirds do dramatic aerial displays to attract a mate. After mating the female does all the work from incubating the eggs, to feeding the young. Because females are not as bright as the male it is harder for predators to see them as they sit on their nests. The greenish back of North American hummingbird females also helps them blend in.
The females build nests that are well camouflaged to blend in well with surroundings. The 1/2 inch eggs will incubate for about 15 days.
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