They are headed to their beds long before the sun comes up in the dead of summer.
They head to the coolest spot they can find, preferably with a water source here by.
More often during summer, dusk is more productive, as they have been in their beds all day.
Once the air cools off they are more likely to leave their beds, and head out early for the evening hunt.
"Going to have to give night hunting a try I suppose." Al
I have come to a similar conclusion.