Phalacrocorax auritus albociliatus (Ridgway, 1884) - The Double-crested Cormorant Delta Ponds, Eugene, Lane Co., OR, January 10, 2012 © Donald H. Gudehus

Phalacrocorax auritus albociliatus (Ridgway, 1884) - The Double-crested Cormorant With 2 Branta canadensis (Linnaeus, 1758) - The Canada Goose Delta Ponds, Eugene, Lane Co., OR, January 10, 2012 © Donald H. Gudehus

Phalacrocorax auritus albociliatus (Ridgway, 1884) - The Double-crested Cormorant Delta Ponds West of Hwy., Eugene, Lane Co., OR, July 19, 2012 © Donald H. Gudehus

Phalacrocorax auritus albociliatus (Ridgway, 1884) - The Double-crested Cormorant Delta Ponds, West of Hwy. & West of Goodpasture Is. Rd., Eugene, Lane Co., OR, February 14, 2013 © Donald H. Gudehus

Phalacrocorax auritus albociliatus (Ridgway, 1884) - The Double-crested Cormorant Delta Ponds, West of Hwy. & West of Goopasture Is. Rd., Eugene, Lane Co., OR, October 6, 2013 © Donald H. Gudehus

Phalacrocorax auritus albociliatus (Ridgway, 1884) - The Double-crested Cormorant, Juvenile, Identified by Julia Siporin Mt. Pisgah Arboretum, Lane Co., OR, October 14, 2018 © Donald H. Gudehus