A rabbit snare is an item used in the members-only Hunter skill. After the Eagle’s Peak Quest players can use the snare and a ferret to catch white rabbits.
To use a rabbit snare, you must set it up on a path that a rabbit could take while going from burrow to burrow. Then, while a ferret is in the inventory, select the “flush” option on the burrow. The ferret will run in and hopefully run the rabbit into the snare. Do be warned: the ferret may run away, so you may need a new one.
You can buy snares for 18 coins from Aleck’s Hunter Emporium in Yanille or the Nardah Hunter Shop.