Where do double-crested cormorants live?

Coasts, bays, lakes, rivers. Very adaptable, may be found in almost any aquatic habitat, from rocky northern coasts to mangrove swamps to large reservoirs to small inland ponds. Nests in trees near or over water, on sea cliffs, or on ground on islands.

Are double-crested cormorants invasive species?

Double-crested cormorants (Phalacrocorax auritus) have long and often been implicated in having detrimental effects on fisheries. Invasive species, most notably alewife, round goby, and white perch, contributed over 80% and 90% of the diet of cormorants by biomass and number, respectively.

Can you shoot double-crested cormorant?

The Migratory Bird Treaty Act prohibits the killing or harming of double-crested cormorants without prior authorization by the FWS. Depredation permits are provided to individuals, private organizations, and other federal and state agencies on a case-by-case basis for the lethal control of problem birds.

Where did the double-crested cormorant come from?

The double-crested cormorant (Nannopterum auritum) is a member of the cormorant family of water birds. Its habitat is near rivers and lakes as well as in coastal areas, and is widely distributed across North America, from the Aleutian Islands in Alaska down to Florida and Mexico.

What does a double crested cormorant look like?

This dark, long-bodied diving bird floats low in the water with its thin neck and bill raised; perches upright near water with wings half-spread to dry. The Double-crested (which rarely looks noticeably crested in the field) is the most generally distributed cormorant in North America, and the only one likely to be seen inland in most areas.

Which is the most common cormorant in North America?

The Double-crested (which rarely looks noticeably crested in the field) is the most generally distributed cormorant in North America, and the only one likely to be seen inland in most areas. Population has had ups and downs. Probably long-term decline (because of persecution at nesting colonies) until about 1920s, then gradual increase until 1950s.

Which is bigger a cormorant or a goose?

They have thin, strongly hooked bills, roughly the length of the head. Their heavy bodies sit low in the water. The size of a small goose; larger than Neotropic Cormorant, but smaller than Great Cormorant. Adults are brown-black with a small patch of yellow-orange skin on the face.

How to tell if a cormorant is a breeding bird?

Breeding birds have small tufts on the side of the head, but can be difficult to see. Birds in the north west tend to have whiter tufts. Note orange-yellow skin around the base of the bill and chin. Individuals rest and preen in large groups on rocky or sandy islands.

https://www.youtube.com/watch?v=MTQowSs5cVM