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.
A bite by the tsetse fly is often painful and can develop into a red sore, also called a chancre. Fever, severe headaches, irritability, extreme fatigue, swollen lymph nodes, and aching muscles and joints are common symptoms of sleeping sickness. Some people develop a skin rash. person will get East African trypanosomiasis if he or she is bitten by a tsetse fly infected with the Trypanosoma brucei rhodesiense parasite. The proportion of tsetse flies that are infected with this parasite is low. The tsetse fly is found only in rural Africa.