It appears that the last remaining egg in the osprey nest is not going to hatch.  Careful analysis of the egg photos in our galleries indicate that the egg that did not hatch was most likely the first egg laid this nesting season.

The first egg has more dark color on one end when compared to the other two eggs. We noted that the first egg to hatch was a few days later than expected. Since the first egg laid is likely infertile, this would explain why the first egg to hatch was several days later. The second egg laid was likely first to hatch and was on time.

The adults are still caring for the first egg expecting the egg to hatch.  It will be interesting to observe how long this behavior may last and what will eventually happen to the egg. It is not uncommon for some eggs not to hatch in the nests of wild birds.