The only one in the duck pond They Have a feather puff on the top of their heads. Ideally, the puff should be like a round ball
The crest is caused by an incompletely dominant mutation gene. It causes a gap in the skull, from which a mass of fatty tissue emerges& feathers grow from this. Sometimes the crests will be quite full, other times very skimpy.
Owing to the mutation, one-fourth of fertile eggs do not hatch, and only two-thirds of the remaining fertile eggs develop into ducks with crests. The other one-third do not have crests and do not carry the gene necessary to produce further generations having crests.
The ducklings grow quickly. These ducks are largely kept as pets. They are quiet, and novel to look at.
