For about a week, I thought a family of blue birds would move into one of our two next boxes, but a sweet pair of chickadees fought hard for the one in the back and quickly built a nest from the straw I'd stuffed behind their box and fresh grass clippings. I've been opening the door to watch the progress, but never saw any birds inside - until this weekend when I got hissed at by a mama bird incubating her eggs. Today I peeked in and she wasn't there, but saw what looked like one whole egg, broken shells and something pink with a really long featherless neck wiggling. BABIES! When I came back a little later, mama was back and ready to hiss at me.