1.	Reviewed by Randall Morgan    Nov 23, 2012
	Action: commented on photo
	Reviewer's comments:
	"this is the only color mutation that shows up with any regularity in wild mallards. Called "schizochroism", it is (at least according to my own breeding experiments) a single-allele recessive sex-linked mutation. It shows up most frequently in females because it is masked by the dominant wild-type allele in heterozygous males. Homozygous males, which could be produced by interbreeding the offspring of this pair, have a silvery instead of green head etc."

 
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