Our last monitoring day for nest boxes was 7 June. From my final report for the season:
Well, not a lot to celebrate this year. My count shows 2 successful nests, one Wood Duck and one Hooded Merganser, both along the inflow to the main wetland. Elsewhere we had 11 nests started but not hatched, either abandoned or predated. As I wrote earlier, we saw evidence of raccoons at several boxes. On 7 June, we also found a rat snake in Box #7. (My notes are not clear for Box #1; it may have been successful, but it was probably predated.) Our fledging percentages for the season are Wood Duck 19% (13/69), Hooded Merganser 20% (13/64).
It would seem that we had more mixed-clutch boxes than usual. Perhaps our species ID of individual eggs is not as accurate as it could be.
Once again, if the team can be helpful in installing predator guards, please let us know.