Looks like mom bluebird has completed her brood. There are four blue eggs in the box. She is spending more time in the nestbox and dad is usually nearby. Just a few minutes ago, while we were enjoying the beautiful day from the sunporch, dad flew to the ground, snagged a cricket and took it into the nestbox for mom.
While we wait the 12 to 16 days for the bluebirds to hatch we will write about our experience with the bluebirds over the past five years.