Mine isn't crested, but it looks like 3 feather follicles fused together w/ a small mass/skin @ the bass. It is moveable & not fixed & it doesn't seem to cause him any pain either.
New Duckie parents! I love these little guys. Pekin is Kevin (from the movie Up), Khaki Campbell is Rigby (from a cartoon), & the Magpie is Mack (just because). They are almost 5 weeks old & Kevin is a quacking female, the others peep, but they all make TURKEY noises!! Any thoughts? Is this...