"People may be desperately seeking the sun after the wettest recorded summer, but at least one species would have had it no other way. Britain's favourite mammal, the badger, may be found this weekend at home in his sett, with his larder full, his babes fattening beside him and very little need to go out and hunt."(My emphasis)
A search for 'Britain's favourite mammal' on Google elicits no evidence of a collective national preference for the badger. But it does reveal that the Forestry Commission is confident that Britain's favourite mammal is the red squirrel:
"Pupils of Inverness's Smithton Primary School will on Friday kick off the great Highland Red Squirrel Hunt - and National Red Squirrel Week - and do their bit to help save Britain's favourite mammal from further decline and possible extinction."
...while a third faction claims the title for our spiky friend the hedgehog, and Swansea City Council makes a daring counter-claim for the otter.
None of these people cite a single shred of evidence for their claim, although the Guardian certainly has form (or, if you will, sett), having proclaimed the badger as top mammal as long ago as 1999.
Personally I would have put good money on Britain's favourite mammal being 'dog', 'cat' or, Heaven forbid, 'human beings'. But the category of 'mammal' has a long history of being appropriated by interested parties for their own political ends, as any feminist critic of Charles* Linnaeus could tell you, and on the strength of the evidence presented here, I can only assume that this continues to be the case.