black duck
Anas rubripes

He was reported to be able to tell the future through a black duck.

I shot a black duck who fell in the woods on the far bank.

Early next morning, I saw a fine black duck fluttering upon the line.

"For some reason, it gives the black ducks more confidence to come in."

Knowing that black ducks probably wouldn't begin to fly for another 30 minutes, I thought of moving to the point.

I certainly saw an encouraging number of resident black ducks.

Now acid rain is also suspected as being a problem for the black duck.

So the incidence of lead poisoning in black ducks over there is like 54 percent higher than the national average.

Other factors, too, have been implicated in the decline of the black duck.

This is America's only black duck, although the female may have some yellow around the nostils.