1 month ago
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Crows and Magpies Snatch Anti-Bird Spikes to Build Their Nests
Birds in Europe are prying up the metal barbs, meant to repel them from roosting on buildings, and using the devices as nesting material
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https://www.smithsonianmag.com
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In Australia cockatoos just tear them off buildings :
https://imgur.com/cockatoo-ripping-off-anti-bird-spikes-lTKmtPe
Lately I've also been seeing info on birds using these to their own ends. Really interesting.