We have some hatchlings in our new Kestrel box. I have a trail cam monitoring activity and the first hatch appears to have happened on 6/17/21. I had an opportunity to check the box this morning (6/22) when the pair chased off a GHOW perched in the trees across from the box. We have 3 hatched chicks out of a clutch of 5 eggs. You can only see 2 heads in the photo below, but I did check and there are 3.
Question: How long after the first 3 have hatched will the 2 remaining eggs possibly hatch? Will the parents eventually remove unhatched eggs, or should I remove them the next time I can check the box??