Great Blue Herons occupy nearly every nest in the rookery! Top right nest . . . male on left and female on right.

Great Blue Heron on approach to nest. Those are some BIG bird feet!

Male Great Blue Heron busy adding sticks to the nest.

Male Great Blue Heron brings a stick to add to the existing nest.

Great Blue Heron rookery on the Salmon River between Challis and Salmon Idaho. This rookery contains over 100 nests.

Going to a lot of trouble to keep the cows out of the creek! Headwaters of the Lemhi River near Leadore, ID.

Salmon River Heron rookery. Male and female on one of over 100 nests.

Salmon River Heron rookery display between mated pair.

Heron in Salmon River rookery.