[3] The Sinaloa crow (Corvus sinaloae) appears to be genetically extremely close to this bird and can be considered the western form of it though the voice is quite different, indeed a third species, the fish crow (Corvus ossifragus) of the southeastern United States appears to be very closely related to them also and the three may be considered a superspecies.

It also occurs in more humid woodland in open areas but does not appear to be found in the higher mountains or along the seashore.

It is a sociable bird often forming large flocks, moving together in close groups.

[4] Food would appear to be mainly insects taken on the ground though eggs and nestlings are taken in trees as well as many fruits and berries.

The nest is similar to the American crow but smaller and is built in a tree or large bush.