Wood duck nest box not working

[Gabrielpsherry]

We installed 3 wood duck nest boxes several years ago. And I’m observing wood ducks on the lake. But it seems they won’t use the nice and safe pine shaving filled boxes.
Any suggestions?

 

[blayt90]

How are they positioned? And how y’all are they mounted? How far away rom water?

 

[Gabrielpsherry]

They vary. One is 6’ high and up on shore by a few feet. The other two are 4-5’ above the water. All are from the county water duck habitat rehabilitation effort, and mounted on solid brackets. I’ll post pics this week.