They typically screech loudly when they are defending their young. Screech owls often hunt their prey from tree perches and consume a varied diet that includes mice, birds, insects, earthworms and crayfish. They build their nests in hollow trees, tree stumps and hollow trunks.
Medical Definition of TSETSE FLY. : any of several dipteran flies of the genus Glossina that occur in sub-Saharan Africa and include vectors of human and animal trypanosomes (as those causing sleeping sickness and nagana)âcalled also tsetse.ull Definition of TSETSE FLY. : any of several dipteran flies (genus Glossina) that occur in Africa south of the Sahara and include vectors of human and animal trypanosomes âcalled also tsetse â compare sleeping sickness. See tsetse fly defined for English-language learners. See tsetse fly defined for kids.
The nagana, or tsetse-fly disease of cattle is the most virulent disease of domestic animals in certain parts of Africa. Handbook of Medical Entomology William Albert Riley. In the course of his work he established beyond question that the nagana and the tsetse-fly disease were identical.