North by Northwest

There are few species in North America as ambiguous as Northwestern Crow (Corvus caurinus). Even in a group of birds that are exceedingly similar the differences between American Crow (Corvus brachyrhynchos) and Northwestern Crow are minuscule at best. The only “surefire” way to tell them apart is by range; however a number of sources also cite vocal differences as a distinguishing characteristic. [Read more]