Murder of Crows

From the publisher's website: Thousands of crows have taken roost in the woods surrounding Bethlehem, NH, mercilessly attacking anyone who tries to enter the forest. The human population is outnumbered more than ten-to-one, and the birds are growing more bold every day. Can the investigators solve the mystery behind this unnatural infestation? Can they save the town of Bethlehem from a disaster of biblical proportions?