CLOSED: what ducks?

All of these pics were taken at Iron Creek Lake in the Black Hills of South Dakota.

Duck 1

Duck 2

Ducks 3

Duck 4 - duck or grebe?

Duck 5 - another mission impossible pic.

#1-3 Mallards

#4-5 Black-necked Grebe a.k.a. Eared Grebe. Good one to get!

Resin

Holy cow! I can't believe that you could tell what 4 and 5 were. I couldn't even tell what I was looking at when I used the binoculars. Amazing! Thank you.

Very distinctive head shape! Only BNG has it.

Resin