Thank you both!
When I had my sheep one was referred to as Trundle, (heaven knows why, it might have been perhaps she had such extremely short legs. She was never meant to be bred from, but got "caught" when a neighbours ram raped my bunch of 12 stores, that were earmarked to market after 6 months, knowing that they were likely to be pregnant, I couldn't have sent them to market with a clear conscience, so they stayed and were incorporated into the flock.)
Anyway, I'd filled the trough with feed, the ewes lined up for their brekkers, leaving the lambs to their own devices. Once the feed was eaten, the gate was opened so that they could all go out. Trundle set off as usual, got half the length of the field and then called her twin lambs. Admittedly they are not the brightest of animals (although I did have exceptional ewe) and Trundles lambs just stayed within the yard, calling for their mum rather than setting of to find her.
Watching dear little Trundle, I swear to this day she actually sighed and dropped her shoulders before turning round in a very resigned manner to set off to collect the little -buggers- darlings!