I have only scanned some of these references so I may express views that differ from them in blog posts. I approach this blog as a leisure activity not as scientific research. I do the best I can to provide accurate information but some things I write are surely wrong. If you find inaccuracies in what I write, I would appreciate you posting comments that correct me.
I started this reference page in March, 2016 to back up information I post in the blog. Right now, it’s limited to Mallards, but it will eventual have other sources listed.
Mallard Duck References
Interesting Life History Facts about Mallards
AllAboutBirds.org by The Cornell Lab of Ornithology
Habitat Management for Molting Waterfowl from “Waterfowl Management Handbook” (PDF) from NWRC.USGS.gov (1990)
Mallard Duck Information on AmericanExpedition.us
Pelletier, TC. (March 26, 2014). Why are mallard drakes so aggressive? Retrieved from http://askanaturalist.com/why-are-mallard-drakes-so-aggressive/
Some interesting facts about Mallard behaviors and coloration:
Mallard Ducks on DesertUSA.com
Mallard Female Molt in
The Ecology and Management of Breeding Waterfowl (1992) in Google Books
Mallard Identification on About.com