Wyoming Valley...Plains Township...The way the warm vapor was shooting out of the hole Probably heat escaping from an abandoned Coal Mine in that area
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Logic.
Many of us don't call during the daytime You are really missing out on day time calling UB. It's been prime time for winter day time calling the past 7 weeks. Fact not logic. The constant snow pack, harsh conditions, breeding & pairing up has been to hunters advantage.
UB, You mentioned before that you like to hunt with a full moon on snow. Daytime calling is similar, but no lights required meaning less equipment. One has to be stealthy for sure, know how to get to your stand quietly and so on.
I won't be surprised if you or your party kill a Coyote today or tomorrow while you hunt the Coyote Contest.