The booming call of early spring

Warmer than average temperatures have triggered wildlife to stir from its winter slumber earlier than usual.

Signs of spring have swept across England and Wales as plants begin to flower, birds begin to sing, and hibernating creatures begin to emerge. Despite the current chilly conditions, temperatures in January were above the long-term average with parts of southern England reaching 60F (15C).

These cosy conditions are enough to trigger a reaction from some early-nesting birds looking to gain a competitive advantage on rivals ahead of the breeding season.

On RSPB reserves, the booming call of Britain’s loudest bird, the bittern, was also heard as early as mid-january, while the gruff, far-carrying call of early-nesting ravens have been heard as they take to the skies to perform their acrobatic, tumbling display. Samantha Herbert