Owl is not a mammal, but a nocturnal bird. It belongs to the class ornitha, and the creatures of the class ornitha are egg laying animals, so owls belong to egg laying animals. The main characteristic of oviparous animals is that the embryo will rely on the yolk of the egg itself as nutrition in the process of development. The breeding time starts around March and some varieties will reproduce relatively early until May to June.
Owls are usually paired with one male and one female, but some species such as ghost owls are paired with one male and many females and one female and many males. Owls generally breed from March to May to June. Some species are early and have begun breeding in January. Except for some species, owls do not nest during breeding, but use tree holes, rock caves or other suitable abandoned nests of birds to hatch their eggs.
The number of owls laying eggs in a nest is uncertain. The larger ones lay fewer eggs, while the smaller ones usually lay more eggs. The incubation period is about one month. Generally, hatching is only completed by the female, and hatching is shared by the male and female. Owls are complete chicks. After hatching, their bodies are covered with feathers and their ears and eyes are closed.
Secondly, owls mainly eat mice, but also eat insects, birds, lizards, fish and other animals. When eating, they often swallow it whole. At that time, they can integrate the undigested bones, feathers, hair, chitin and other residues in the food into small groups and spit them out through the esophagus and mouth.
Owls often inhabit various habitats such as low mountains, hills, tundra, desert, plain, swamp, lake bank and grassland, especially in open plain grassland, swamp and lake bank.