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- Crows and magpies using anti-bird spikes to make nests https://www.theguardian.com/science/2023/jul/11/crows-and-magpies-show-their-metal-by-using-anti-bird-spikes-to-build-nests 2 comments
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- US buildings kill up to a billion birds a year. These architects want to save them | Birds | The Guardian https://www.theguardian.com/environment/2023/dec/27/birds-buildings-collisions-architecture 25 comments
- Crows and Magpies Snatch Anti-Bird Spikes to Build Their Nests | Smithsonian https://www.smithsonianmag.com/smart-news/crows-and-magpies-snatch-anti-bird-spikes-to-build-their-nests-180982546/ 11 comments
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