This bird struck me as smaller than a typical Double-crested Cormorant in the field, possibly with a longer tail than Double-crested, suggesting a Neotropic. It was high-flying and made a circle as it continued on. Double-crested is the default cormorant species in San Diego County, but the first county record of Neotropic occurred in 2014, and they are on the increase around the Salton Sea in nearby Imperial County. Photo 1 of 3.
The Double-crested Cormorant (Phalacrocorax auritus) is a member of the cormorant family of seabirds. It occurs along inland waterways as well as in coastal areas, and is widely distributed across North America, from the Aleutian Islands in Alaska down to Florida and Mexico. Measuring 70–90 cm (28–35 in) in length, it is an all-black bird which gains a small double crest of black and white feathers in breeding season. It has a bare patch of orange-yellow facial skin....