In some localities coyotes are more numerous around settlements, and even in the close vicinity of large towns, than they are in the frowning and desolate fastnesses haunted by their grim elder brother.
Big wolves vary far more in color than the coyotes do.

I have seen white, black, red, yellow, brown, gray, and grizzled skins, and others representing every shade between, although usually each locality has its prevailing tint.

The grizzled, gray, and brown often have precisely the coat of the coyote.

The difference in size among wolves of different localities, and even of the same locality, is quite remarkable, and so, curiously enough, is the difference in the size of the teeth, in some cases even when the body of one wolf is as big as that of another.

I have seen wolves from Texas and New Mexico which were undersized, slim animals with rather small tusks, in no way to be compared to the long-toothed giants of their race that dwell in the heavily timbered mountains of the Northwest and in the far North.