Craveri’s Murrelet (Synthliboramphus craveri) is a small seabird breeds on offshore islands in both thePacific Ocean and the Gulf of California off the Baja peninsula of Mexico. It also wanders fairly regularly as far as central California in the USA, primarily during post-breeding dispersal. It is threatened by predators introduced to its breeding colonies by oil spills, and tanker traffic. Increasing tourism development and commercial fishing fleets also further threaten the species. With an estimated population of 6,000-10,000 breeding pairs, it’s population is listed as vulnerable. 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. ... This list is incomplete; you can help by expanding it. ... Scientific classification or biological classification is a method by which biologists group and categorize species of organisms. ... Animalia redirects here. ... Typical Classes See below Chordates (phylum Chordata) are a group of animals that includes the vertebrates, together with several closely related invertebrates. ... “Aves” redirects here. ... 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. ... In biology, binomial nomenclature is the formal method of naming species. ... 1865 (MDCCCLXV) is a common year starting on Sunday. ... The Sooty Tern is highly aerial and marine and will spend years flying at sea without returning to land. ... The Gulf of California (also known as the Sea of Cortez or Sea of Cortés; locally known in the Spanish language as Mar de Cortés or, much less frequently, Golfo de California) is a body of water that separates the Baja California Peninsula from the Mexican mainland. ... ... Official language(s) English Capital Sacramento Largest city Los Angeles Area  Ranked 3rd  - Total 158,302 sq mi (410,000 km²)  - Width 250 miles (400 km)  - Length 770 miles (1,240 km)  - % water 4. ... It has been suggested that this article or section be merged into invasive species. ... Colonial seabirds in Hawaii. ...

Description and range

The Craveri’s Murrelet is a small black and white auk with a small head and thin sharp bill. It resembles the closely related Xantus's Murrelet, with which it shares the distinction of being the most southerly living of all the auk species. The Craveri’s Murrelet has a partial neck collar (Xantus’s has none), and dusky underwings (Xantus’s has white underwings). Craver’s black face mask dips a bit further down the face compared to the Xantus’s. Both species can be also separated by voice. Binomial name Synthliboramphus hypoleucus (Xantus, 1859) Xantuss Murrelet (Synthliboramphus hypoleucus) is a small seabird found in the California Current system in the Pacific Ocean. ...

Behaviour

Craveri's Murrelet feeds far out at sea on larval fish such as herring, rockfish, and lanternfish. Like all auks it is a wing-propelled diver, chasing down prey under the water with powerful wingbeats. It flies well, and can take off without taxiing. Species Clupea alba Clupea bentincki Clupea caspiopontica Clupea chrysotaenia Clupea elongata Clupea halec Clupea harengus Clupea inermis Clupea leachii Clupea lineolata Clupea minima Clupea mirabilis Clupea pallasii Clupea sardinacaroli Clupea sulcata Herrings are small oily fish of the genus Clupea found in the shallow, temperate waters of the North Atlantic... Genera Adelosebastes Helicolenus Hozukius Sebastes Sebasticus Sebastolobus Trachyscorpia The Sebastidae are a family of marine fish in the order Scorpaeniformes. ... Genera Benthosema Bolinichthys Centrobranchus Ceratoscopelus Diaphus Diogenichthys Electrona Gonichthys Gymnoscopelus Hintonia Hygophum Idiolychnus Krefftichthys Lampadena Lampanyctodes Lampanyctus Lampichthys Lepidophanes Lobianchia Loweina Metelectrona Myctophum Nannobrachium Notolychnus Notoscopelus Parvilux Protomyctophum Scopelopsis Stenobrachius Symbolophorus Taaningichthys Tarletonbeania Triphoturus Lanternfishes (or myctophids, from the Greek mykter, nose and ophis, serpent) are small, deep sea fish... Flight is the main mode of locomotion used by most of the worlds bird species. ...

The Craveri's Murrelet nests in small crevices, caves and under dense bushes on arid islands in loose scattered colonies. It returns to the colony only at night, laying two eggs which are incubated for about a month. Like other murrelets of the genus Synthliboramphus (like the Ancient Murrelet) the chicks are highly precocial, leaving the nest within two days of hatching and running actively towards the sea, where the parents call to them. Once at sea the family swims to offshore waters. Little is known about the time at sea due to difficulties in studying them. For other uses of the word, please see Genus (disambiguation). ... Binomial name Synthliboramphus antiquus (Gmelin, 1789) The Ancient Murrelet, Synthliboramphus antiquus, is a bird in the auk family. ... In biology, precocial species are those that are relatively mature and mobile from the moment of birth or hatching. ...

Threats

Craveri's Murrelet is considered by some to be one of the more endangered species of auk. It is threatened by offshore oil drilling and tanker traffic. Increased tourist developments and birds getting caught in nets from commercial fishing operations also pose a danger. It is also threatened by introduced species such as mice, rats and feral cats; this threat has been lessened lately by efforts to restore its habitat by removing introduced predators. Mice may refer to: An abbreviation of Meetings, Incentives, Conferencing, Exhibitions. ... Species 50 species; see text *Several subfamilies of Muroids include animals called rats. ... Rescued feral kittens Most feral kittens have little chance of surviving more than a few months and are vulnerable to starvation, predators, disease and even flea-induced anemia[1][2]. Here, kittens from two feral litters are fostered by a domestic mother. ... Island restoration is the application of the principles of ecological restoration to islands and island groups. ...

References

• BirdLife International (2005). Synthliboramphus craveri. 2006 IUCN Red List of Threatened Species. IUCN 2006. Retrieved on 11 May 2006. Database entry includes justification for why this species is vulnerable
• Gaston, Anthony; Jones, Ian (1998). The Auks, Alcidae. Oxford University Press, ISBN 0-19-854032-9
• "National Geographic" Field Guide to the Birds of North America ISBN 0-7922-6877-6
• Seabirds, an Identification Guide by Peter Harrison, (1983) ISBN 0-7470-1410-8
• Handbook of the Birds of the World Vol 3, Josep del Hoyo editor, ISBN 84-87334-20-2
• "National Audubon Society" The Sibley Guide to Birds, by David Allen Sibley, ISBN 0-679-45122-6