Mariton: Bluebird Progression
by Tim Burris, Preserve Manager.
Here are two different broods of Bluebirds hatched about one week apart. The photo above shows a brood that wasn’t hatched last week when I checked the boxes. The Bluebirds in the photo below are less than two weeks old. They grow fast. The birds below will probably still be in the nest box next week when I monitor. If they are still there, they will be leaving the box within a few days.