Sometimes use thermal in daylight. Works fine unless background is same temp as the animal. Helps to turn up the brightness some.

Agree thermal is great for locating live or downed animals, and much easier to spot them just inside tree lines vs a regular day scope.

Forgot to mention another thermal advantage: it's passive. Animals may not see IR well as visible spectrum, but some do. Rats, for sure.

NV has advantages tho.