For a little over 1 and a half years I noticed 2 in particular that visited the neighborhood late at night. My older dog (husky) wants to kill them when he sees them (been a while now). The last time I saw either one was during the end of winter with the last snow melting, the male ran through my back yard, what suprised me about this, it was noon time, during broad daylight.
During the time the coyotes moved in the fox population seemed to shrink fast, lately Ive seen a few foxes and hear them sometimes at night in the field behind my house. Maybe the coyotes found an area with more stray cats, or irresponsible housecat owners (those who do not keep them indoors where they belong, they do not belong outdoors running loose and destroying the environment, reproducing uncontrolled, or spreading deadly disease among each other).