Our young birds commence laying at five months old, lay through the fall months, moult slightly during the first of December, and about the middle of December begin again.
"Natural and Artificial Duck Culture"
James Rankin
"It is written: 'Cho Sing collected feathers to make a garment for his canary when it began to moult,'" replied Lin acquiescently.
"Kai Lung's Golden Hours"
Ernest Bramah Commentator: Hilaire Belloc
June and July squabs are good, but are more expensive to raise, as they are at mating age in September, October and November, when they are subject to moult and are difficult to mate at this time.
"Raising P.V. Squabs for Profit"
John S. Trecartin