ADCcoyote,
Coyotes around here, if chased or seek shelter from harsh weather, whatever. Will use an old den hole, culvert tube, brush pile or bed in a dip between picked corn rows. Or below a ridgeline, from the prevailing wind. Even in well below zero days. These non-covered bedding areas are on the leeward sides of hills mainly.
These shallow pocket holes, are not true dens as I've stated before. But are digs, I suspect from either chasing vermin, or picking out a suitable spot for a possible true den site.
Most coyotes in Iowa, most often choose the center area, or near it, of these mile sections. Especially if those areas, have timber or heavy low cover such as brush or weed patch's.
Ocasionally, I have found dens on open hillsides & or on terrace's.
Jist of my rambling, is their breeding/pr'ing-up season. This [January-February] finding. Which is not always in the time frame of what most experts claim. From what I've observed. I've seen early & late yearlings. I'm betting you have too.
What truely interests me. Is I wonder the claims of these experts. Whether someone truely did the leg work, put in many hrs of field time, observations & come to a conclusion. As to the pr'ing-up & breeding times. Of coyotes or Red Fox.
Then [most or all] of the other professional experts. Read, that person's finding's. Then agree, without doing their own field work, or putting in their time. To find out for themselves.
In central Iowa, after mid February. A spotter who hunts any given day of the wk. Will play heck finding any coyote out in the open. I've rarely seen a local [I.D'd]/female coyote in the open after that time period.
I've I.D'd these local pr's many times over the yrs. Those are my observations. I didn't read that somewhere & followed suit of sometone that DID put in their time. Et come to some agreeable conclusion.
As been stated before, once you believe you have something figured out, et it is now etched in stone[in your opinion]. Nature, will prove you wrong.