Why sex gets cocks crowing

2017-08-08 02:00:09

A DAWN cacophony is a cockerel’s attempt to safeguard its unborn offspring. Sex, it seems, makes chickens noisier and more likely to raise the alarm if there is a potential threat. Behavioural ecologists were not sure whether males squawk mainly to attract mates, impressing hens by putting themselves in a situation where predators might notice them, or whether they screech after the event to protect any future offspring. David Wilson from Macquarie University in Sydney, Australia,