Drone of traffic and chicks.

Chicks can't hear their mothers over the constant drone of traffic 

Research has shown the high volume of modern city life makes it harder for nestlings to hear their parents. This puts them at risk of going hungry. And makes them deaf to danger from predators.

Read the full story:

http://www.dailymail.co.uk/sciencetech/article-2813227/Modern-life-killing-birds-chicks-t-hear-mothers-constant-drone-traffic.html

30 October 2014