Tyrants of the bird kingdom

These pics are of an Eastern Kingbird, one of the species in the family named "Tyrannus" which means tyrant or despot. It also means king, presumably the reason they are called kingbirds. The Eastern and its cousins the Western and Cassin's that are found in SE Colorado live up to their tyranical name as they are all quite agressive, often feuding with other kingbirds as well as other species Their high-pitched squabbling call is often heard from these quarrelsome birds throughout the breeding season.
SeEtta