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Over 50,000 color images of worldwide
plant and animal species

Over 50,000 color images of worldwide
plant and animal species

Thalassarche chrysotoma
Albatross - Grey Headed
KingdomAnimal (Animalia)
PhylumBackboned Animals (Chordata)
ClassBird (Aves)
OrderAlbatross And Allies - Bird (Procellariiformes)
FamilyAlbatross (Bird) (Diomedeidae)
GenusThalassarche
Scientific NameThalassarche chrysotoma
Common NameAlbatross - Grey Headed
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SPECIES INFO
Grey headed albatross or gray headed mollymawk (Diomedea chrysotoma equal Thalassarche chrysotoma) is found in all the southern oceans of the world. This breeds circumpolar in the southern oceans. In the New Zealand area this breeds only at Campbell Island. This can be seen in the oceans to the south of Australia. This albatross can be seen off both sides of southern South America. This 34 inch albatross has a wingspan up to about 96 inches. The adult shows a gray head in contrast to other species that have a white head. The dorsal wings show brown when flying. The underside shows all white except for the gray head and black trim on both the leading and trailing edges of the wings.

The Thalassarche genus was previously part of the Diomedea genus. Five species were moved from Diomedea to the Thalassarche genus. However, some authors have moved the Campbell Albatross (Thalassarche melanophrys ssp impavida to Thalassarche impavida).

These birds have long narrow wings, and members of this genus have wing spans from about 7 to 8 feet.

Thus we have counted 6 species herein.

Albatross Family (Diomedeidae) contains about thirteen or fourteen species of large-bodied birds with long pointed wings. Most Albatrosses are excellent gliders, but not such excellent fliers. Albatrosses need various wind currents to help them stay aloft, and consequently, they are most numerous in the windy oceans of the world.

The largest Albatross, the Wandering Albatross (Diomedea exulans) has a wing span of ten to eleven feet. This species breeds in the South Pacific. Young take to the wing, and fly and glide for about seven years before returning to their island origins to breed.

Fishermen, in the search for Bluefin Tuna, string out long lines behind their boats with hundreds of hooks and pieces of squid. The squid, one of the natural foods for the albatross attracts the birds, and they kill themselves in attempting to feed on the squid. It is felt that this practice could be killing up to 44,000 Wandering Albatross per year.

Amsterdam Albatross (Diomedea amsterdamensis) breeds only on the Amsterdam Island in the Indian Ocean. In l985, it was observed that only about five pairs of this species were breeding per year.

Short Tail Albatross (Diomedea albanus) breeds only on Torishima, a volcanic island south of Japan. Feather hunting and volcanic eruptions almost brought this species to extinction. In 1986, the population on Torishima was estimated at 146 adults and 77 young.

Tube Nosed Swimmers (Order Procellariiformes) contains three families of primarily marine birds. There are about 114 different species in this order. The albatrosses, shearwaters, storm petrels, and diving petrels are contained in this order.

Aves contains about 8,650 different species of living birds known to science. Each year about one new species is discovered in some remote rain forest or remote island. In addition, scientists have been raising many subspecies to full species status which may raise the species count to 10,000. Birdlife recognizes 10,027 species as of 2011.

However, each year about one species goes extinct. The rate of extinction is increasing, and the rate of new discovery is decreasing, so that the number of bird species will soon begin to decline rapidly. Although different taxonomists would organize the birds differently, there are approximately twenty-seven orders of birds. These orders are broken down into about one hundred and fifty-five different families.

Recent research of the genetic structure of some of the shore birds and owls would indicate that the present organization of orders and families should have some modification.

The birds are a worldwide group of animals that are characterized by having the front limbs modified into wings that are used for flying. Perhaps the most unique feature of the birds is the feathers. These feathers are made up of a central support called a quill and a series of small filaments that are hooked together as barbs.

For many years it was believed that Archaeopteryx discovered in Bavaria was the oldest bird from about 150 million years ago. However, in l986, Sankar Chattterjee, a Texas paleontologist, reportedly discovered a bird in the genus Protoavis that lived about 225 million years ago.

When this project was begun in 1978, we used Austin & Singer for bird taxonomy. Since then, we have adopted many changes, but have kept some older concepts that are still found widely in the literature. Recently, we have used Clements and Howard & Moore. Very recently, we have used Monroe and Sibley for the higher taxonomy of the perching birds.

Backboned Animals (Phylum Chordata) are the most advanced group of animals on earth. These animals are characterized by having a spinal cord or backbone. Most members have a clearly defined brain that controls the organism through a spinal cord. Fish, amphibians, reptiles, birds, and mammals are in this phylum.

Currently, some taxonomists believe that the fish should be divided into two groups (sharks and regular fishes) and that there are some other primitive groups in the phylum such as hagfish or lampreys.

Animal Kingdom contains numerous organisms that feed on other animals or plants. Included in the animal kingdom are the lower marine invertebrates such as sponges and corals, the jointed legged animals such as insects and spiders, and the backboned animals such as fish, amphibians, reptiles, birds, and mammals.