It’s looking more likely each day that there is only one eyass on the Terence Cardinal Cooke. It would be interesting to know what happened, but I don’t think we’ll ever know for sure. I don’t know how many eggs were laid, or how many hatched.
One thing we have observed is that the mother often has wet feathers when she gets up off the nest. There is a possibility that there is a drainage problem under the nest. Hopefully, as the pair add to the nest next winter, it becomes higher and drier.