Cold weather, hungry coyotes, and they could care less if you're busy howling Dave, they're coming and nothing stopping them, no matter how horrible you sound.
The effects of a full moon on snaring is a big controversy.
Haveing snared several thousand animals,it as simple as the animals can see the snare in the moonshine IE no moon good catch bright moon not so good.I still however have no explaination as to why my medication do not work during the full moon.