1. Acorn woodpeckers wage days-long battles over vacant territories, radio tag data show  Science Daily
  2. Woodpecker battle royale sees teams of birds fight for nearly a week  New Scientist
  3. There's a secret war going on between woodpeckers  Sky News
  4. View Full coverage on Google News

When a breeding location frees up, woodpeckers fight each other in teams in a conflict lasting up to 10 hours per day for nearly a weekWhen a breeding location frees up, woodpeckers fight each other in teams in a conflict lasting up to 10 hours per day for nearly a week

Woodpecker battle royale sees teams of birds fight for nearly a week | New Scientist

Researchers monitoring the birds with radio tags made the startling discovery about the complex social behaviour.Researchers monitoring the birds with radio tags made the startling discovery about the complex social behaviour.

There's a secret war going on between woodpeckers | Science & Tech News | Sky News