I would like to put 2 in my pond. I can probably wade in when the water warms a bit to pound them in, or do people do it through the ice?

What direction should they face? I have trees on the west and east side of the pond, north and south are bare. Best flight path is north or south or at least flying in from the N, or NE, or dropping in from the S.

Prevailing winds seem to be from the west to the east, so maybe put on the west side of the pond with opening to the E or slightly NE?

Hole of the duck house should be about 4' off the water?

I may try purposely putting them on opposite sides of the pond to see which the ducks prefer.

Also if I wait to ice out, how much time do I have to get them in? Do the ducks choose their nesting site early in the spring or mid spring to early summer?