Research Results For 'Colymbidae'

BLACK-THROATED DIVER

The Black-throated Diver or Arctic Loon (Gavia arctica) is a sea bird of the family Colymbidae, native to northern Europe and northwest Asia, which sometimes breeds in northern Scotland. Its colouration comprises grey-brown upper parts with white under parts. The nest is built on islets near deep water, and comprises a shallow depression in grass, usually without any lining, and often by the water's edge enabling the birds to slip straight into the water from the nest. One or two, occasionally three eggs are laid in April or May, and the partners take turns in incubating them for about a month. After hatching, the chicks take straight to the water with their parents who continue to care for them for a further two months. The Black-throated Diver feeds primarily on fish diving to as much as forty-five metres in pursuit of prey, but also eats crustaceans and molluscs and the occasional frog, worm and aquatic insects.
Research Black-throated Diver

COLYMBIDAE

Colymbidae (or Gaviidae) is the Divers family of birds of the order Natatores. They are characterized by a slightly compressed bill, not covered with a membranous skin; the edges of the mandibles are unarmed or but slightly toothed; the wings are short; the legs are placed far behind; the tarsi are very much compressed. They feed on fish and other aquatic animals obtained by diving.
Research Colymbidae

COMMON LOON

The Common Loon (Gavia immer) is a water bird of the family Colymbidae. Like all loons, the common loon has a straight, pointed bill, swims low in the water and has feet placed at the posterior of the body, making it a poor walker. It is an expert fisher, diving from the surface. It is a common winter visitor in ocean waters along the California coast. Also found in estuaries and bays.
Research Common Loon

GREAT NORTHERN DIVER

The Great Northern Diver (Gavia immer) is an ocean bird of the Divers family, Colymbidae. It is the largest of the Divers (between sixty and eighty centimetres long), and visits British seas in winter when its colouration is a mottled-grey on the upper parts with a white throat. In summer the upper parts are black with square white spots, the head an neck glossy black with a band of black and white stripes on the throat.
Research Great Northern Diver

PACIFIC LOON

The Pacific Loon (Gavia pacifica) is an American wetland bird of the family Colymbidae. It swims low in the water has a greyish colour above, lighter below with a slender and straight bill which may be tilted up at a slight angle. It is a fairly common winter visitor along the California coast.
Research Pacific Loon

PODICEPS

Podiceps (Grebe) is a genus of birds of the family Colymbidae characterized by a straight conical bill, no tail, a short tarsus, flattened toes which are separate but broadly fringed at their edges by a firm membrane and legs set so far back that on land the Grebe adopts the upright stance of a penguin. They are excellent swimmers and feed on small fish, frogs, crustaceans and insects.
Research Podiceps

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