One old cow,          $1400
Calf loss,                $ 300   Could be thousands if he was a replacement bull that stopped gaining weight when his mother was taken.  If the surviving calf was 5 months old less, 3 months old more.
Total/cow               $1700           
killed,
Production loss, weight and open cows, would be the next big hit, a nice round number would be $250/ pair
Kind of an expensive FWS experiment