Before revision: Dove experiment In a study to observe how the Barbary dove's sleep patterns are affected in the presence of various flock sizes , D. W. Lendrum set out to prove that bigger flocks would decrease the overall vigilanceand that an apparent increase in predation risk by being surrounded by fewer doves would harm their sleep cycle.
After revision: Dove experiment In a study of how the Barbary dove's sleep patterns are affected by flock size , D. W. Lendrum intended to prove that larger flocks reduced overall vigilance, and the apparent increase in predation risk of a smaller flock would harm the doves' sleep cycle.