I saw the kestrel and dove interaction on the videos that are posted on the side of the page. The box is still empty. If you start with the video that says "illegal babysit" you'll see doves vs kestrels. Looks to me like the doves laid their eggs in the box but could not sit because the kestrels kept coming back. The kestrels probably did not settle there because of too much interference by the doves!!

BTW, the spoonbills are adorable too. Most of the time it's just one parent tucked tightly on the nest, but yesterday there was one standing beside the nest (all I could see were long skinny legs!) as well as the one sitting. The sitter stood up and I could see the little bobbing heads briefly before she plunked back down again.