a sheep lying on its' back unable to regain its footing, possibly due to lying in a hollow with legs facing uphill, having a heavy fleece and/or being in the last trimester of pregnancy with multiple lambs. Also see riggwelter. Found on https://www.encyclo.co.uk/local/22439
a sheep lying on its' back unable to regain its footing, possibly due to lying in a hollow with legs facing uphill, having a heavy fleece and/or being in the last trimester of pregnancy with multiple lambs. Also see riggwelter.