The first egg has now hatched - still waiting on the second. Best time to tune in seems to be evenings after 8 pm when female is alert. Tonight around 9:30 you could hear her and her mate hooting back and forth while he hunted for her dinner. Very cool watching him land on the railing and deliver a rat. Occasionally she shifts position enough to glimpse the white owlet, and if you crank the volume you might hear the peeping.
-kris
here's some video of the owlet's first feeding:
http://www.youtube.com/watch?v=KjZyUqLIFso