There's another silence as Daud struggles with something, mentally. Mercy cocks her head at Deirdre's stifled outburst, then glances back at Daud. Apparently coming to a decision, the osprey hops down and waddles to Billie -- a horribly inelegant motion, given she's most certainly a creature of flight -- to peer at the other disgruntled bird curiously, then making a softly mournful noise.

"You don't have to call me 'sir' anymore, Billie," the tiefling says. His voice already sounds like rusted gears on a good day; somehow, it sounds even hoarser now.

"...and I'm not the one you owe an apology to." In case she has any doubt what he means, he'll click his tongue for Red's attention, making the short motion for 'guard' and pointing at Billie. More than likely, it'll confuse the poor thing, but it's not so much about expecting to obey the command as it is prompting him to remind Billie he's there, instead of just curled passively on her lap.