At least that is what it looks like to me. At least 1 chick; maybe two. See the two very dark eyes peering out from under Mama? See the fresh broken egg shell? We must be more diligent now and watch the cameras close. Here is a link to the Boise Peregrine Fund Web Cam, there is also a permanent link in the sidebar. If you are watching the web cam and see the chicks, please do a “Screen Capture” and send me the photo. I will post it here. In the meantime, here are two screen shots I got today at about 1500, May 5, 2016. Keep Looking Up!
One chick peering out from under Mom. You must look close – sorry for the poor image. No egg shell visible.
Tiercel, on edge of box and Female incubating. They are “talking” to one another. New egg shell fragment on gravel.