Flight Behaviour of Pigeons During Weightlessness

Abstract

Pigeons were subjected to weightlessness caused during parabolic flight in an airplane. Experiments were performed with these birds in their normal state, as well as in conditions with hooded eyes, with the legs bound, and a combination of both handicaps. In all these situations, the flight behaviour of the birds was observed. The results are discussed and comparisons are made with the behaviour of man and fish under similar conditions.

The authors are greatly indebted to the Royal Dutch Airforce (Squadron 334) for providing facilities essential to this investigation.