What Bird Lays the Smallest Egg?

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The bee humingbird lays the smallest eggs of any bird on Earth. According to the Guiness Book of World Records, the bee humingbird lays eggs that are 0.275 inches long and weigh only 0.0009 ounces.

The bee humingbird not only lays the smallest eggs of any bird in the world, even fully mature, these birds only weigh between 0.06 and 0.07 ounces. Like other humingbirds, they drink nectar from flowers and shrubs and their favorite food is the cup of gold vine.

Breeding between bee humingbirds takes place between the end of the rainy season and the beginning of the dry season. The breeding males perform mating rituals which include singing various songs to attract a female. Once he has chosen a mate, reproduction occurs and then the male departs, leaving the female to build a nest and raise the chicks. Females lay approximately two pea-sized white eggs and incubates them for between 14 and 16 days. When the chicks hatch, they are blind, lack any kind of down protection, and are completely immobile. It is the female's responsibility to feed them and keep them warm until they can fned for themselves.