Desire to reproduce drives active nightlife of birds
Wednesday, January 22, 2014 - 09:37
in Biology & Nature
For a non-nocturnal bird, the yellow-breasted chat spends a significant amount of time visiting other birds' territories during the night. A University of Illinois researcher who was studying birds' movement during the day noticed that males were active almost every night, while the females were active at night but particularly during the window of time when they were fertile.