Tuesday September 18, 2012
Do Horse flies have nests and why do they attack people?
Horse flies and the closely related deer flies do not have nests, but deer flies, in particular, often hang out in groups waiting for food to stroll past them. That food, for the female horse and deer flies, will be the blood of warm blooded animals, and humans are perfectly acceptable. The males of these flies feed only on the nectar and other sweet plant fluids available, but the females also need bl... Read more
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