The gray phase female has not been seen here since January 16, 2011.
The absence in and of itself is only slightly disconcerting, since she hasn’t been away from the nest box more than 2 days in a row, but not unheard of with other screech owls. But my suspicion was raised the next day, January 17, 2011.
The red phased male was in the box. I was there to watch fly out. It started calling, first a mid volume monotone ‘bounce’ song. That got progressively louder. He called at least a a half dozen times. I have watched lots of flyouts, and they are normally silent. Sometimes there is a barely audible ‘winny’ or ‘bounce’. Afterward I did bit of internet searching and found an incredibly relevant paper
There is a chance that she has just found better hunting somewhere else with a suitable roost. But there are lots of dangers facing screech owls…and I already mentioned a larger ‘eared’ type owl seen a few weeks ago on site…
I guess we will wait and see.