When noise levels rise, birds react. Noise is one of the top environmental hazards to which humans are exposed. It has also been linked to reduced breeding success and population decline in birds. So what happened to birds during the coronavirus pandemic lockdown when our cities fell silent? Many people said they could hear birds as they were singing louder. Did their singing change and if so, how and why? What can we learn about noise pollution and its effects on us from the birds? Presenter: Mya-Rose Craig Producer: Sarah Blunt (Photo: Zebra Finch Zebra Finch - Poephila (also: Taeniopygia) guttata. Credit: Science Photo Library)