29/03/2026
You can read the original article open access at our journal, Animal Behaviour: https://www.sciencedirect.com/science/article/pii/S0003347226000011
A study published in the journal Animal Behavior says that birds from all over the world, from the Galápagos to New Zealand, are weaving discarded cigarette butts into their homes. Sometimes, they’re even nesting directly in actual, literal ashtrays.
Why? Because they provide a kind of natural/completely unnatural pesticide, with the ni****ne and heavy metals a human drags into the butts that seem to naturally repel parasites.
Photo by Andrei Sidorov on Unsplash