Four Eggs

We got a good look this evening at what we have suspected from shadows is four eggs. Unfortunately, this year, we didn't get the camera properly aimed before the season started. As Mrs. Owl has put the nest right next to the glass, we don't get to see the entire clutch. We suspect the fourth egg was laid a couple of nights ago.

Four eggs is an average size clutch, according to Gehlbach's book. 2 is the minimum, and 6 is the maximum that he recorded during his decades of study. As incubation began in earnest on March 18th, we can expect the first hatching about 30 days later, around April 17th.