The male ruby-throated hummingbird does indeed have a striking red throat, though the female of the species does not.

The male ruby-throated hummingbird does indeed have a striking red throat, though the female of the species does not.
Ruby-throated hummingbirds live in woodland areas, but also frequent gardens where flowering plants are plentiful. They hover to feed on flowers, nectar, and sap. During this floral feeding process, the birds pollinate many plants.

These tiny birds are omnivores, sometimes feeding on insects and spiders. An adult ruby-throated hummingbird may eat twice its body weight in food each day, which it burns up with the high metabolism necessary to sustain its rapid wing beat and energetic movements.

Males establish a territory and court females who enter it with flying and diving behaviors, and by showing off their red throat plumage. Females provide all care for young hummingbirds. They lay one to three eggs, incubate them for about two weeks, and, after hatching, feed their young for about three weeks. A female may have several broods in a year. Ruby-throated hummingbirds are largely solitary outside of the breeding season.

Reference:
http://animals.nationalgeographic.com/animals/birds/ruby-throat-hummingbird/

Read & Learn:
http://www.hummingbirds.net/rubythroated.html

Photo via imgur

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