Coincidentally, I started a couple of duck breasts for a similar recipe yesterday. I'll let you know how it goes. I'm sure pheasant would be good like this too although pheasant breasts are a lot smaller than duck and pheasant is probably more similar to chicken than duck. Probbq, I would wager that it would be best to keep the skin on the pheasant breasts for this which is a bit of a pain since pheasant skin is so thin and tears very easily when plucking. Try to take no more than 2-3 feathers each pluck and you should be OK.
Good luck
Ryan