The spikes were meant to keep birds away. But five corvid nests in Europe use the bird-deterrents as structural support and to ward off predators.
Rebellious birds use anti-bird spikes to build their nests •
Cheeky magpies make nests out of anti-bird spikes - Wales Online
Why these Crows are using Anti-bird Spikes to Build their Nests
What Are Bird Spikes And When Would You Use Them?
Rebellious crows make nests out of anti-perching spikes
The Dos and Donts of Bird Nest Removal
Some birds are using antibird spikes to build their nests
In a clever move that researchers are calling the “ultimate adaptation to city life,” birds are now stealing anti-bird spikes to buil
HOTBEST 12PCS Bird Repellent Spikes Arrow Pigeon Spikes Fence Kit Anti Bird Fence Pigeon Deterrent Seagull Repeller For Deterring Small Bird Crows and Woodpeckers
How To Get Rid of Birds (2024)
Birds get revenge by using anti-bird spikes in nests