From his bio:

Weird things they do

• petting the rabbits – tanya has 2 house rabbits and niles has become very good about leaving them alone. but we can tell he really wants to play with them (possibly for nefarious reasons). but he remains very obedient and tries to play it off like he isn’t completely focused on them when they’re around. every now and then they will go up to each other for sniffs and nudges and niles will put his paw on them. tanya thinks its to hold them down i like to think he’s giving them back scratches :)