Hovels seems likely. I have a dim recollection of finding a couple of little baggies of Hovels stuff randomly at the very back of the miniatures display racks over at Imperial Hobbies a few years back, behind the big bags of old-school Napoleonic 25mm figures fuzzy with lead rot!
Looking at their
Farm Animals page I think I have the following - the numbers match up with the number of ewes, ram, lambs, and goats I currently have:
C19 Ram plus two sheep. £2.30
C24 Pair of nanny goats. £1.50
C30 Ewe plus two lambs £1.50
I'll chuck Hovels an email and confirm, but in the meantime please resume your usual livestock jokes!