Wyoming Game and Fish Department has an official hunting season for crows: Nov. 1 to Feb. 28. Killing is by firearm, archery, or falconry.  No license required, no bag limit.  A departmental advisory informs hunters about distinguishing crows, which can be killed, from ravens, which are protected under the Migratory Bird Treaty Act. Ravens have wedge-shaped tails, are more skilled at soaring, have stouter beaks, are larger than crows, and vocalize differently. It is more a croak than a caw.