Random headcanon:

The head of the beastkeeping coven before Eberwolf was basically the boiling isles version of a poacher.

The previous head was a massive big game hunter, hunting any rare creature they could find simply because they could and because they enjoyed the thrill of the hunt, plus they would skin and/or taxidermy the thing afterwards so they could use it as a decoration or trophy in their house. They’d often use their high status as a coven head as an excuse to hunt endangered and protected animals.

They also collected human artifacts for a time, especially ones associated with human animals. Their prized positions are a tigerskin rug that was found in good condition and a very old elephant gun that they repaired and modified using magic.