why do city birds bring cigarette butts to their nests are using for pest control. 🚬 House sparrows and finches line with smoked filters. The nicotine left behind repels parasites like mites and lice. It's a Birds line nests with cigarettes

Birds line nests with cigarettes PEST UK Why Some Urban Birds Build Nests with Cigarette Butts: A Surprising Survival Strategy The Economic Times City birds use cigarette butts to ward off ticks CBC Radio To protect their nests from parasitic mites, urban birds line their nests with used cigarette butts. The use of nicotine as a pesticide is natural.

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