Coyotes of both sexes disperse. Last year when I went out for some coyote control for a friend, I had a 6 to one ratio of males, in past years I have seen it be the other way around. Some areas that are occupied by denning pairs the yearling and a few older females are allowed in, but most males aren't well tolerated, it's a male thing. Look at the heards of livestock and other hearding animals females are allowed near the other females young but males aren't tolerated near them. I have found a few times that a yearling male was helping with raising the new pups, but most often it's been females. At times I have found two males running together in an area that didn't have a denning pair in it. The availability of food is another determining factor in them allowing others in a denning area. You must have a good crop of prey animals in your area this year. So then you have a smaller territory that the denning pair need to hunt in to feed the new crop of pups or a smaller number of pups to be fed. Have you seen any diseases in your coyotes, what has your number of coyotes looked like last year if you had higher numbers of coyote or a lower amount of prey your birth rate may be lower thus, they don't have the larger numbers of kids to feed and range in a smaller area. One winter we had a relatively open winter here with milder temperatures and little snow, but South Dakota had a harsher winter cold temps. for weeks on end and deep snow cover. I started killing smaller finer furred coyotes of the sand hills type, when you looked at their feet the pads showed that they were worn, and they had been traveling long distances, coming down the Cheyenne river drainage from South Dakota to the area around Bill Wyoming several hundred miles. What are the surrounding areas like did they have a hard winter? Do they have good prey bases to support the coyote population? Are the wildfires and smoke moving them from their areas? Was there a high number of females in other areas as compared to the number of males so last year's young females didn't find mates. They may have traveled miles to get to your area.