Double Crested Cormorant

A large, dark waterbird commonly found in the Coachella Valley near lakes, reservoirs, and slow-moving rivers. These birds are adept divers, using their powerful webbed feet to propel themselves underwater in search of fish.

Identification:

• Size: About 28-35 inches long with a wingspan of 45-48 inches.
• Coloration: Mostly black with a slight greenish or bronze sheen.
• Bill: Long, hooked, and yellow-orange at the base.
• Eyes: Vivid blue.
• Distinctive Features: During breeding season, adults develop two small tufts of black or white feathers above their eyes—hence the "double-crested" name.

Habitat & Range:

Double-crested Cormorants are found throughout North America, particularly near water. In the Coachella Valley, they frequent the Salton Sea, the Colorado River, and various man-made lakes where fish are abundant. They are both year-round residents and seasonal visitors, depending on water availability and food sources.

Behavior & Adaptations:

• Unlike many waterbirds, cormorants lack fully waterproof feathers. This adaptation helps them sink easily for deep dives but requires them to dry out frequently—hence their characteristic pose of spreading their wings in the sun.
• They often perch on logs, docks, and rocky outcroppings to dry their wings after diving.
• They are social birds and nest in colonies, usually in trees or on cliffs near water.

Diet:

Primarily fish, which they catch by diving and pursuing underwater. They may also eat amphibians and small crustaceans.

Ecological Role:

As top predators in aquatic environments, they help regulate fish populations. However, due to their efficient hunting abilities, their presence can sometimes be controversial in fishery areas.