They're Outsmarting Us': Birds Build Nests from Anti-Bird Spikes - The New York Times
If You Happen to See a 'Devil Bird' in Washington or Oregon, Run!
Birds Use Spikes in Nests, Outsmarting Humans
Birds Use Spikes in Nests, Outsmarting Humans
Birds make nests out of anti-bird spikes pins to adapt to city
Scientific American - July August 2023, PDF, Obesity
Emily Anthes - Page 6 - The New York Times
Birds Repurposing 'Anti-Bird' Spikes to Build Nests, Researchers
What Pigeon Spikes Can Teach Us About People - Atlas Obscura
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Birds Are Using Anti-Bird Spikes to Build Nests, Research Finds
Emily Anthes - Page 6 - The New York Times
European Birds Have Been Using Anti-Bird Spikes To Make Nests
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Birds Are Using Anti-Bird Spikes to Build Nests, Research Finds
Bird brains' outwit us, again : News : Audubon Society of Omaha
European Birds Have Been Using Anti-Bird Spikes To Make Nests
