City birds have learned to line their nests with cigarette butts in order to ward of parasites, as burnt nicotine works as an insecticide to ward off mites, lice and fleas.
from Crazy Facts http://ift.tt/14I7de7
City birds have learned to line their nests with cigarette butts in order to ward of parasites, as burnt nicotine works as an insecticide to ward off mites, lice and fleas.
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