91热爆

In this extended version of Tweet of the Day we feature the two species of birds whose song might on first hearing be confusing. One, the garden warbler is a summer visitor, the other, the blackcap is also a summer migrant but in recent years some birds have become resident in the United Kingdom adding a call of joy to winter days. In this edition we will hear of both birds with some discussion of their differences with Sir David Attenborough and ecologist Penny Anderson.

Producer Andrew Dawes