@mymoneypit,
Cute dickies, and I'm interested to see the inside of scovy duck duck house for plans for own smaller duck duck houses.
@buck oaks,
I've seen protien ect deficiencies in peoples parrots, songbirds, and chickens, cause this problem, but ruling out lack of plant and/or animal proteins, essential oils fatty acids and vit E, i wouldn't keep breeding from any animal that has in fam history. or you could try toys and more enrichment if its simple boredom, and not physical skin trouble, or psyc trouble.
@jharper,
I'm a novice scovy keeper but i guessed correct with all but one duckling (thought my sweet lil girl Candace was a drake) of my first brood of dozen ducklets. I went the second week i think, by how was told of legs and feet thicker wider ect, width thickness of bills, head and neck thickness and size, the males already would raise crests in down more and snake heads (or walk like an Egyptian. Lalalala ..lol). Males laid aroun and just plopped more, not running as much or as far as girls. girls perched more were boys laid around down on ground more off logs ect. females scooted along smoother than clumsier boys. their were very subtle body shape differences, especially the tail and wings. males started feathering in days sooner. males ate a lot more. these all in exception to my sweet fatty Candace of course who was clumsy lazy and eats like a wittle piggle still. she runs quacking to me for food petting and protection from others who pic on her, and brings me garbage from road or were ever even coughing up soda caps ect at my feet. i clean well around several acres but am right on main hwy with no fence but all animals, but two ducks one dog and one cat, don't go onto road as taught. I'm renting close to fam now but trying to own. was quiet and so, not more than a half dozen cars a day, out here before recent trailer parks were put in.. probly more I'm forgetting or getting mixed up that others more experienced can clear up. seems so and way too long ago..