The four boy kittens we imported last year did the trick. Cats only carry their kittens for 67 days so we are watching closely as it seems that Valentines Day was very eventful for the two females.
Momma Cat was the only one I could capture with a picture since Grandma is a little skittish especially when I have the camera pointed her direction.
Two litters will help the barn cat population with the mice and rats that like to use the hay as a refuge. Both Momma and Grandma are good hunters and they train their offspring to find prey both inside the barn and out along the brushy fence line.