Bird songs are common sounds to us all, but why do birds sing? Imagine you’re a male willow warbler, and you’ve just flown 2,400 miles (4000 km) from Africa. It’s spring, and you need to find a mate quickly. However, your home is a woodland and you’re the colour of leaves. What better way of advertising to a passing female that you are here and would make a fine father for her chicks than by having a clear, loud and recognisable song?
Click here for more information.: Bird Songs | Find out about Bird Calls in the UK – The RSPB