The busy mother with 11 hungry mouths to feed

They suffered more than most bird species during the unusually cold snap in January.

But these long-tailed tits, which need to find food almost continually throughout the winter to survive, appear to be flourishing at the RSPB's nature reserve at Fairburn Ings in West Yorkshire, despite the mother having 11 hungry mouths to feed.

The long-tailed tit is sometimes described as "a ball of fluff on a stick" because of its long tail and relatively small body.