SPECIES INFO
Bluethroat or bluethroat nightingale (Luscinia svecica) is found from parts of Scandinavia and Germany east through Russia and south to parts of Iraq and western Iran. There are small disjoint populations in both France and Spain. There are also some populations in western Alaska. This 5.5 inch unique brown bird can have a blue throat and upper breast. This blue area can be marked with a white spot. Below the blue area is a black band followed by a reddish brown band. The lower breast is gray-brown.
There are several named subspecies with varying color patterns. Most of the males have the red band at the upper edge of their breast. Some of the males lack the white spot which can be absent or replaced with a red spot. The females are generally brown.
The bluethroat nightingale has 11 species listed in Clements in 2007. The nominate subspecies is found from Scandinavia east to Siberia and Alaska. The subspecies nammetum is found in western France. The subspecies cyanecula is found from central Europe to Spain. The subspecies przwalskii and kobdensis are both found in China.The nightingale and robin genus (Luscinia) per Monroe-Sibley contains 11 species. However, the Erithacus genus with the Monroe-Sibley count of 3 species is very closely allied, and different authors treat the boundaries of these two genera differently. At any rate the Luscinia genus is found primarily in the Eurasian area with some presence in both Africa and the Philippines. One northern European form appears to breed in Alaska.
The Saxicolini tribe has about 156 species divided among about 30 genera. Most of the species are from Africa with the balance from Eurasia and the Indo-Australian region.
In most modern bird taxonomies, the perching birds (Passeriformes) is treated as a single order. This large order has about 5739 different species. Recently, Monroe and Sibley in 1993 have divided this large order into six main divisions. To help our users navigate this gigantic number of species, we have arbitrarily placed these 6 different divisions at the order level in our taxonomy tree.
This Muscicapoidea division can be referred to as:
Order Passeriformes (5739 species)
Suborder Passeri (4580 species)
Parvorder Passerida (3473 species)
Superfamily Muscicapoidea (613 species)
This superfamily of Muscicapoides is divided into families without a common agreement as to the precise division. Thrushes, robins, rock thrushes, starlings, chats, wheatears, and others belong here.
In most modern bird taxonomies, the perching birds (Passeriformes) is treated as a single order. This large order has about 5739 different species. A common characteristic of this order is three forward toes and one reverse pointing toe. Most of species are also characterized by a tendon locking mechanism that permits their feet to lock onto branches when they relax. Recently, Monroe and Sibley in 1993 have divided this large order into six main divisions. To help our users navigate this gigantic number of species, we have arbitrarily placed these 6 different divisions at the order level.
This division can be referred to as:
Order Passeriformes (5739 species)
Suborder Passeri (4580 species)
Parvorder Passerida (3473 species)
This large Passerida group can be divided into 3 additional groups as follows:
Superfamily Muscicapoidea (613)
Superfamily Sylvioidea (1204)
Superfamily Passeroidea (1656) 613 + 1204 + 1656 =3473
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.
