This is a very photo intensive post but the photos tell the story. Yesterday I had a opportunity to watch the male Eastern Bluebird (Daddy as we call him) protect his nest from an unsuspecting Mourning Dove that landed too close. All shots were taken with my E-M5 and Olympus 40-150 lens. You can click on the images to view larger versions of them.
Daddy on the left and Momma on the right. The dish next to Momma is where we put mealworms for them.