I've no hard and fast notions about calling, except that it seems that with a lot of moon, late evening and early morning works.
New moon, later hours like 10PM have seemed to be better.
My theory, FWIW, is that a lot of moon means prey animals can see better, and it's harder for predators to get a meal. So, they work longer hours...
Dark of the moon, it's generally easier, but if they haven't found a meal by around 10PM, they're hungrier and more eager to respond to a call.
I guess...
Art