Uria
Brunnich’s Guillemot
Conservation status
Least Concern
Scientific classification
Kingdom: Animalia Phylum: Chordata Class: Aves Order: Charadriiformes Family: Alcidae Genus: Uria Brisson, 1760
species
U. aalge U. lomvia Thick-billed & Common Murre from USGS Caption: Common & Thick-billed Murres Source; U.S. Geological Survey, Alaska Science Center - Biological Science Office, Seabird Tissue Archival and Monitoring Project File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... The conservation status of a species is an indicator of the likelihood of that species continuing to survive either in the present day or the future. ... Image File history File links Status_iucn3. ... Least Concern (LC) is an IUCN category assigned to extant species or lower taxa which have been evaluated but do not qualify for any other category. ... For other uses, see Scientific classification (disambiguation). ... For other uses, see Animal (disambiguation). ... Typical Classes Subphylum Urochordata - Tunicates Ascidiacea Thaliacea Larvacea Subphylum Cephalochordata - Lancelets Subphylum Myxini - Hagfishes Subphylum Vertebrata - Vertebrates Petromyzontida - Lampreys Placodermi (extinct) Chondrichthyes - Cartilaginous fishes Acanthodii (extinct) Actinopterygii - Ray-finned fishes Actinistia - Coelacanths Dipnoi - Lungfishes Amphibia - Amphibians Reptilia - Reptiles Aves - Birds Mammalia - Mammals Chordates (phylum Chordata) include the vertebrates, together with... For other uses, see Bird (disambiguation). ... Families Thinocoridae Pedionomidae Scolopacidae Rostratulidae Jacanidae Chionididae Burhinidae Haematopodidae Recurvirostridae Ibidorhynchidae Charadriidae Pluvianellidae Dromadidae Glareolidae Stercorariidae Rhynchopidae Laridae Sternidae Alcidae Charadriiformes is a diverse order of small to medium-large birds. ... Genera Alle Uria Alca Pinguinus Cepphus Brachyramphus Synthliboramphus Ptychoramphus Cyclorrhynchus Aethia Cerorhinca Fratercula Auks are birds of the family Alcidae in the order Charadriiformes. ... Mathurin Jacques Brisson (April 30, 1723 - June 23, 1806) was a French zoologist and natural philosopher. ...

Uria is a genus of seabirds in the auk family. These are medium-sized guillemots with mainly brown or black plumage in the breeding season. They breed on the coasts of the northern Atlantic and Pacific Oceans Uria may refer to: Uria, a genus of auks. ... The Sooty Tern is highly aerial and marine and will spend years flying at sea without returning to land. ... Genera Uria Alle Alca Pinguinus Synthliboramphus Cepphus Brachyramphus Ptychoramphus Aethia Cerorhinca Fratercula Extinct genera, see Systematics Auks are birds of the family Alcidae in the order Charadriiformes. ... The Guillemots are seabirds in the auk family. ... The Atlantic Ocean, not including Arctic and Antarctic regions. ...

There are two species:

• Common Guillemot or Common Murre, Uria aalge
• Brunnich's Guillemot or Thick-billed Murre, Uria lomvia

Uria auks are relatives of the Razorbill, Little Auk and the extinct Great Auk and together make up the tribe Alcini. Despite the similar common names, they are not so closely related to the Cepphus guillemots which form the tribe Cepphini. Binomial name Uria aalge (Pontoppidan, 1763) The Common Guillemot, known as the Common Murre in North America, Uria aalge, is a large alcid. ... Binomial name Uria lomvia (Linnaeus,, 1758) The Brunnichs Guillemot, or Thick-billed Murre, Uria lomvia, is a bird in the auk family. ... Binomial name Alca torda Linnaeus, 1758 The Razorbill, Alca torda, is a large alcid, 38-43 cm in length, with a 60-69 cm wingspan. ... Binomial name Alle alle (Linnaeus, 1758) The Little Auk, or Dovekie, Alle alle, is a small auk, the only member of the genus Alle (Link, 1806). ... In biology and ecology, extinction is the ceasing of existence of a species or group of species. ... Binomial name Pinguinus impennis (Linnaeus, 1758) The Great Auk (Pinguinus impennis, formerly Alca impennis) is an extinct bird. ... In biology, a tribe is a taxonomic classification in between family and genus. ... The Guillemots comprise two genera of auks, Uria and Cepphus. ...

These birds breed in large colonies on coastal cliffs, their single egg being laid directly on a cliff ledge. They move south in winter to keep in ice-free waters. In most birds and reptiles, an egg (Latin ovum) is the zygote, resulting from fertilization of the ovum. ... Flock of Barnacle Geese during autumn migration Bird migration refers to the regular seasonal journeys of varying distances undertaken by many species of birds. ...

They dive for food from the surface, swimming underwater. They mainly eat fish and crustaceans, also some molluscs, insects and plant material. For other uses, see Fish (disambiguation). ... Classes Remipedia Cephalocarida Branchiopoda Ostracoda Maxillopoda Malacostraca The crustaceans (Crustacea) are a large group of arthropods (55,000 species), usually treated as a subphylum. ... Classes Caudofoveata Aplacophora Polyplacophora - Chitons Monoplacophora Bivalvia - Bivalves Scaphopoda - Tusk shells Gastropoda - Snails and Slugs Cephalopoda - Squids, Octopuses, etc. ... Orders Subclass Apterygota Archaeognatha (bristletails) Thysanura (silverfish) Subclass Pterygota Infraclass Paleoptera (Probably paraphyletic) Ephemeroptera (mayflies) Odonata (dragonflies and damselflies) Infraclass Neoptera Superorder Exopterygota Grylloblattodea (ice-crawlers) Mantophasmatodea (gladiators) Plecoptera (stoneflies) Embioptera (webspinners) Zoraptera (angel insects) Dermaptera (earwigs) Orthoptera (grasshoppers, etc) Phasmatodea (stick insects) Blattodea (cockroaches) Isoptera (termites) Mantodea (mantids) Psocoptera...

Adult birds are black or brown on the head, neck, back and wings with white underparts. The bill is long and pointed. They have a small rounded black tail. The lower face becomes white in winter.

The flight is strong and direct, and these species have fast wing beats due to the short wings.

Uria guillemots produces a variety of harsh cackling calls at the breeding colonies, but are silent at sea.

Some prehistoric Uria species are also known:

• Uria bordkorbi (Monterey or Sisquoc Late Miocene of Lompoc, USA)
• Uria affinis (Late Pleistocene of E USA) - possibly a subspecies of U. lomvia
• Uria paleohesperis

U. brodkorbi is interesting insofar as it is the only known occurrence of the Alcini tribe in the temperate to subtropical Pacific, except for the very fringe of the range of U. aalge. It suggests that the Uria species, which are the sister taxon to all the other Alcini, and like them are usually believed to have evolved in the Atlantic, may have evolved in the Caribbean or possibly close to the Isthmus of Panama. The modern Pacific distribution would then be part of a later arctic expansion, whereas most other auk lineages form clades with a continuous range in the Pacific, from arctic to subtropical waters. For other meanings of Pacific, see Pacific (disambiguation). ... This cladogram shows the relationship among various insect groups. ... West Indies redirects here. ... The Isthmus of Panama. ... The red line indicates the 10°C isotherm in July, commonly used to define the Arctic region border Satellite image of the Arctic surface The Arctic is the region around the Earths North Pole, opposite the Antarctic region around the South Pole. ... A clade is a term belonging to the discipline of cladistics. ...

References

• Harrison, Peter (1988): Seabirds (2nd ed.). Christopher Helm, London. ISBN 0-7470-1410-8

• del Hoyo, Josep; Elliott, Andrew & Sargatal, Jordi (editors) (1996): Handbook of Birds of the World Volume 3 (Hoatzin to Auks). Lynx Edicions, Barcelona. ISBN 84-87334-20-2