Here is a preview of what's to come.
On 3/18 Jack took this picture. Guess who's egg it is.
Five days later on 3/23, there are five eggs. A bluebird lays one egg per day.
In about 12 days, we should have chicks.
And about 16 days later, they will fledge.
Bluebirds don't mind us looking in their nest and it helps us make sure a cowbird hasn't tried to fool momma bluebird.
Amazingly, she will probably have another set of chicks after these leave the nest.