If I ask people to tell me the color of a male Mallard's head, most would say it is green. That's true in bright sunlight, but if you're lucky to catch one on a bright but overcast day, you'll see a beautiful blue sheen mixed with the blue. The females are no less lovely, sporting an intricate brown and white pattern with just a hint of rust.
If I ask people to describe the nest of a Canada Goose, I would get a range of answers, and all of them would likely be correct. Take a look at these two nests. One is a master woodworker that painstakingly wove twigs together to form a basket that Longaberger would envy. The other is a master at remodeling, transforming a tree stump into a perfect nursery.