This is an assignment for my class, how does it even make sense?

"In January, there was a pair of owls on each of the four farms except the Reizorc farm. The goats there had climbed into the loft and created so much disturbance that the owls moved to West Virginia. However, by the time egg laying began in February, a new pair had moved in from Pennsylvania.

The vole population in January, was still large, due to a late fall with lots of food and a high reproductive rate. There were about 2000 voles present in January, but the owls ate 200 of the in February."