I just caught this guy today and I don't know too much about the value of the color, but it didn't seem to be super prolific (I could be wrong) so I figured I'd give a shout-out to anyone working with cockatrices looking for wild breeding stock who's maybe also interested in breeding for color? Message me with an offer if you're interested - otherwise I think I might end up keeping him because actually kind of rad. 

ETA: Since he was recently caught, anyone interested would have to wait until the taming period was up.