Although I have waited 2 years in vain for wood ducks to decide to use my very luxurious wood duck houses, at least right on cue today, the momma/poppa mallard came back to rest on the pond. How they figured out that yesterday there were ice floes left and today the water is clear for a landing is beyond me. They are like teenagers who seem to sense when there is food around and show up at the right time. I hope the pond is big enough for the woodies to share with the mallard. Both are fun to have around.