Hushed Willows It's a hi-tech prosthesis.

Stark turned when he heard the woman approaching, tail giving a couple slow sways - he didn't mind their presence, he trusted Octavia. He offered her a smile before it quickly turned into a little grin, adding a wink as he lowered his head in a respectful bow to her. "It's good to see you," He offered, turning his blue eyes back towards the growing foliage. "Everyone settling alright?" He asked. There would be time to get settled properly into a hunt, if either of them caught sight of anything worth investigating. 

Stark was curious about the newest members of the pack, he'd only heard some things from Octavia. It wasn't much to give, from her words, but she would let Stark learn on his own and he respected that. The dark male was actually relieved to have more people in the pack - especially Harlyn, to stand with Octavia. He knew the rest of the pack didn't share his feelings.