Note 3 — Chapter II · Breeds and Varieties—How to Mate to Produce Exhibition Specimens—Preparing Ducks for the Show—Catching and Handling
Reading edition
For a detailed discussion of the behaviour of the Blue Andalusian in breeding, the reader is referred to "The Mating and Breeding of Poultry" by Harry M. Lamon and Rob R. Slocum, published by the Orange Judd Publishing Company, New York City.