I guess things didn’t go smoothly.

A Great Blue invaded another’s space without invitation.

The bird on the left is a male, identified only because he claimed the nesting site earlier.  Females are slightly smaller, young Blues have daker face feathers.

On the right is the new comer. I can’t tell male, juvenile or female. I would think a female would receive a ‘warm’ welcome here.

The original bird made it clear who had territorial rights. These interactions will go on for a few months now, even after birds have paired up.

Great Blue Herons, swamp rookery.