Pond Boss Forums GENERAL QUESTIONS Wildlife Management Spring duck migration

I saw a pair on our pond Thursday evening (woodies). I had stopped to buy wood shaving to put in the nesting box. I thought someone said to find cypress shavings. The place I stopped at had cedar, pine, and aspen. I bought the aspen thinking it might be closest to cypress. I put the shavings in the box about 3" deep. Hope that's enough. I can add more. Might have been too late for that pair, as I didn't see them around at all the next day. I'd like a nesting pair, but don't want a whole bunch. Last fall I had 200 woodies on the pond. It's less than an acre now, so I let the dog run a bit to keep them away.