Garden: Blue Fawn

More "precious" in large
Extra: Koi flapping

Koi's gold and silver plumage is termed "Blue Fawn" in call duck circles... Unlike Kappa, she doesn't have any iridescence: her speculum (fanned here) is almost graphite. 
She's looking v. contrasty at the moment.

Others here (or right from Kappa leading the trio)