28/10/2026
An extraordinary autumn morning at Whaddon, Buckinghamshire. Thousands of migrating birds, a clearing sky and an intriguing question about flight altitude.
https://bird-observer.org/can-visible-bird-migration-turn-invisible/
An extraordinary autumn morning at Whaddon, Buckinghamshire. Thousands of migrating birds, a clearing sky and an intriguing question about flight altitude.