True to form the bluebirds have selected the modified Gilbertson nest box for their third nesting cycle of 2009. The first two nestings were in the nestcam box. When we observed the bluebirds hauling pine straw to the Gilbertson, we put a small pile of pine straw near the nest box to make it easier for them.
Hard at work building the third nest of the season!
You can observe the bluebird activity from the yardcam by clicking on the link below.
You may want to use the zoom feature in the web viewer to get a closer look at the entrance hole of the Gilbertson nest box.