why do city birds bring cigarette butts to their nests use fight nest parasites: City birds are using cigarette butts in to reduce parasites, but the toxic tradeoff may come with hidden risks for chicks. # Cigarette Butts in Birds' Nests

Cigarette Butts in Birds' Nests May Deter Parasites World of Birds Urban birds using Cigarette Butts in nests: A study has surprisingly found House finches and House sparrows, for example, often using cigarette butts into their nests. Studies highlighted in Nature show that Did you know? Some birds are using cigarette butts to build their nests Researchers say nicotine helps repel parasites protecting baby birds in the short term. But While birds use trash to build their nests, it can harm them World Economic Forum

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