The Phoebe nest that Squirrel knocked down got covered up with Snow in the last storm. When I was shoveling a path to the screen house, I couldn't remember where it was and accidentally shoveled into it and broke it apart. When it fell open, I saw that there was a single egg inside. The egg was about a quarter the size of a hen's egg, and pale white.
At first it struck me as sad. One of the Phoebe chicks had not been incubated into life. Perhaps that parents had abandon it, forced to flee the nest by Hawk. I wouldn't ever know. All I knew was that I got to see what a Phoebe egg looks like. Maybe that's enough.