Is hummingbird a mammal?

Hummingbirds belong to birds, hummingbirds are a variety of generic categories. In fact, hummingbirds have 1 family, 2 subfamilies, 104 genera and 355 species. Its body shape varies greatly, large as swallows, small than wasps are also small. And some of you are wondering, is hummingbird a mammal?

Hummingbirds are not mammals, they lay eggs, usually laying two (rarely one) white oval eggs, the smallest of the bird eggs, but weighing about 10% of the female's body weight. Young birds hatched without vision, no hair, fed by parents, about 3 weeks after the plumage plump. Lactation generally refers to the biological phenomenon of feeding young animals with milk secreted by their mammary glands after they give birth. Hummingbirds have no mammary glands and cannot produce milk. They are not mammals.

Hummingbirds are not widely distributed, mainly inhabiting tropical and subtropical regions, and are limited to the Americas. There are no hummingbirds in the Old World, but there are some birds similar to hummingbirds, such as sunbirds and flowers and birds. Most hummingbird species are concentrated between latitudes 10° N and 25° S. There is no hummingbird distribution in China, and most of the rumors about hummingbirds are large moths that are mistaken for hummingbirds when feeding on nectar, such as hummingbird eagle moths.

Although there are still many species of hummingbirds, all species of hummingbirds have been listed on the IUCN Red List of Endangered Species because, with the development of deforestation and farming, the habitat on which hummingbirds live is gradually destroyed by humans, and some hummingbirds are also facing extinction.