Wolves don't howl at the Moon, whatever the stories say, and the Moon's phases don't change how they howl.

Wolves and Foxes · day 1 of 7
Wolves do not howl at the Moon, despite popular belief.
Under certain conditions howls can be heard over up to 130 km2.
A pack of 15 is able to bring down an adult moose.
Some dispersing wolves have travelled upwards of 670 km.
The father brings food while the mother stays in the den.
Two minutes a day, a new wild animal. Free on iPhone, Android and the web.
Feravox is a free wildlife app: 4,400+ species with real recorded sounds, 11 nature games and a free Daily 5, 1v1 quiz duels, conservation wins, and a safe Kids mode.