The ancient murrelet (') is a
bird
Birds are a group of warm-blooded vertebrates constituting the class Aves (), characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweigh ...
in the
auk
An auk or alcid is a bird of the family Alcidae in the order Charadriiformes. The alcid family includes the murres, guillemots, auklets, puffins, and murrelets. The word "auk" is derived from Icelandic ''álka'', from Old Norse ''alka'' (a ...
family. The English term "murrelet" is a diminutive of "murre", a word of uncertain origins, but which may imitate the call of the
common guillemot.
Ancient murrelets are called "ancient" because they have grey on the back like a shawl, as worn by the elderly.
[Attenborough, D. 1998. ''The Life of Birds''. BBC Books. .]
Taxonomy
The ancient murrelet was
formally described in 1789 by the German naturalist
Johann Friedrich Gmelin
, fields =
, workplaces = University of GöttingenUniversity of Tübingen
, alma_mater = University of Tübingen
, doctoral_advisor = Philipp Friedrich GmelinFerdinand Christoph Oetinger
, academic_advisors =
, doctora ...
in his revised and expanded edition of
Carl Linnaeus
Carl Linnaeus (; 23 May 1707 – 10 January 1778), also known after his ennoblement in 1761 as Carl von Linné Blunt (2004), p. 171. (), was a Swedish botanist, zoologist, taxonomist, and physician who formalised binomial nomenclature, the ...
's ''
Systema Naturae
' (originally in Latin written ' with the ligature æ) is one of the major works of the Swedish botanist, zoologist and physician Carl Linnaeus (1707–1778) and introduced the Linnaean taxonomy. Although the system, now known as binomial nomen ...
''. He placed it with the auks in the
genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...
''
Alca'' and coined the
binomial name
In taxonomy, binomial nomenclature ("two-term naming system"), also called nomenclature ("two-name naming system") or binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, bot ...
''Alca antiqua''. Gmelin based his description on the "ancient auk" that had been described in 1785 by both the English ornithologist
John Latham and the Welsh naturalist
Thomas Pennant
Thomas Pennant (14 June Old Style, OS 172616 December 1798) was a Welsh natural history, naturalist, traveller, writer and antiquarian. He was born and lived his whole life at his family estate, Downing Hall near Whitford, Flintshire, in Wales ...
. Both authors mention a specimen in the
Leverian Museum
The Leverian collection was a natural history and ethnographic collection assembled by Ashton Lever. It was noted for the content it acquired from the voyages of Captain James Cook. For three decades it was displayed in London, being broken up ...
and give the location as the west of North America, the
Kuril Islands
The Kuril Islands or Kurile Islands (; rus, Кури́льские острова́, r=Kuril'skiye ostrova, p=kʊˈrʲilʲskʲɪjə ɐstrɐˈva; Japanese: or ) are a volcanic archipelago currently administered as part of Sakhalin Oblast in the ...
and the
Kamchatka Peninsula
The Kamchatka Peninsula (russian: полуостров Камчатка, Poluostrov Kamchatka, ) is a peninsula in the Russian Far East, with an area of about . The Pacific Ocean and the Sea of Okhotsk make up the peninsula's eastern and we ...
. The ancient murrelet is now one of five species placed in the genus ''
Synthliboramphus
''Synthliboramphus'' is a small genus of seabirds in the auk family from the North Pacific. The genus name ''Synthliboramphus'' is from Ancient Greek ''sunthlibo'', "to compress", and ''rhamphos'', "bill". The English name "Murrelet" is a dimi ...
'' that was introduced in 1837 by the German born naturalist
Johann Friedrich von Brandt
Johann Friedrich von Brandt (25 May 1802 – 15 July 1879) was a German-Russian natural history, naturalist, who worked mostly in Russia.
Brandt was born in Jüterbog and educated at a Gymnasium (school), gymnasium in Wittenberg and the Humboldt ...
.
The genus name combines
Ancient Greek
Ancient Greek includes the forms of the Greek language used in ancient Greece and the ancient world from around 1500 BC to 300 BC. It is often roughly divided into the following periods: Mycenaean Greek (), Dark Ages (), the Archaic peri ...
''sunthlibō'' meaning "to compress" with ''rhamphos'' meaning "bill". The specific epithet ''antiquus'' is
Latin
Latin (, or , ) is a classical language belonging to the Italic branch of the Indo-European languages. Latin was originally a dialect spoken in the lower Tiber area (then known as Latium) around present-day Rome, but through the power of the ...
meaning "ancient".
Two
subspecies
In biological classification, subspecies is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (morphology), but that can successfully interbreed. Not all species ...
are recognised:
[
*''S. a. antiquus'' ( Gmelin, JF, 1789) – northeast ]Asia
Asia (, ) is one of the world's most notable geographical regions, which is either considered a continent in its own right or a subcontinent of Eurasia, which shares the continental landmass of Afro-Eurasia with Africa. Asia covers an area ...
, Aleutian Islands
The Aleutian Islands (; ; ale, Unangam Tanangin,”Land of the Aleuts", possibly from Chukchi language, Chukchi ''aliat'', "island"), also called the Aleut Islands or Aleutic Islands and known before 1867 as the Catherine Archipelago, are a cha ...
to western Canada
Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by tot ...
*''S. a. microrhynchos'' – Stepanyan Stepanyan (also commonly spelled Stepanian) (Armenian: Ստեփանյան) is an Armenian surname, derived from ''Stepan'' (Armenian: Ստեփան), the Armenian equivalent of Stephen, and could refer to any of the following people:
* Arthur Stepa ...
, 1972 – Commander Islands (eastern Russia
Russia (, , ), or the Russian Federation, is a List of transcontinental countries, transcontinental country spanning Eastern Europe and North Asia, Northern Asia. It is the List of countries and dependencies by area, largest country in the ...
)
Description
This small auk species is black on the head, throat and rear neck, grey-backed, and has white underparts. The yellow bill is short and stubby. It has a small rounded black tail. The summer adults have white head streaks giving an aged look and leading to the English
English usually refers to:
* English language
* English people
English may also refer to:
Peoples, culture, and language
* ''English'', an adjective for something of, from, or related to England
** English national ide ...
name. Other plumages are similar, but lack the crown streaks and black on the throat.
Ancient murrelets tend to bank from side to side in flight to a greater extent than other small auks. They fly with fast wing beats due to their short wings.
Measurements:
* Length:
* Weight:
* Wingspan:
Distribution and habitat
It breeds from the Yellow Sea
The Yellow Sea is a marginal sea of the Western Pacific Ocean located between mainland China and the Korean Peninsula, and can be considered the northwestern part of the East China Sea. It is one of four seas named after common colour terms ...
(islands off China), through the Russian Pacific coast and the Aleutian Islands
The Aleutian Islands (; ; ale, Unangam Tanangin,”Land of the Aleuts", possibly from Chukchi language, Chukchi ''aliat'', "island"), also called the Aleut Islands or Aleutic Islands and known before 1867 as the Catherine Archipelago, are a cha ...
to the Haida Gwaii archipelago of British Columbia
British Columbia (commonly abbreviated as BC) is the westernmost province of Canada, situated between the Pacific Ocean and the Rocky Mountains. It has a diverse geography, with rugged landscapes that include rocky coastlines, sandy beaches, ...
, where about half of the world population breeds.
Some ancient murrelets migrate
Migration, migratory, or migrate may refer to: Human migration
* Human migration, physical movement by humans from one region to another
** International migration, when peoples cross state boundaries and stay in the host state for some minimum le ...
from Canada to winter near Japan and China, even though the climate is similar at the two ends. It is the only bird known to cross the whole North Pacific. They then start a return trip in February, flying four or five hours a day. Genetic evidence shows that the species originated in Asia and only recently colonized North America, so their migration takes them back to their original homeland. In 2007, surveys off the Olympic Peninsula
The Olympic Peninsula is a large arm of land in western Washington that lies across Puget Sound from Seattle, and contains Olympic National Park. It is bounded on the west by the Pacific Ocean, the north by the Strait of Juan de Fuca, and the ...
found unprecedented numbers of Ancient Murrelets with chicks, strongly implying local breeding.
Other ancient murrelets however fly south in winter as far as California
California is a U.S. state, state in the Western United States, located along the West Coast of the United States, Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the List of states and territori ...
, and odd birds are found inland in North America, carried by autumn storms. The most remarkable record of this relatively short-distance Pacific migrant was a bird found on the island of Lundy
Lundy is an English island in the Bristol Channel. It was a micronation from 1925–1969. It forms part of the district of Torridge in the county of Devon.
About long and wide, Lundy has had a long and turbulent history, frequently chang ...
, in Devon
Devon ( , historically known as Devonshire , ) is a ceremonial and non-metropolitan county in South West England. The most populous settlement in Devon is the city of Plymouth, followed by Devon's county town, the city of Exeter. Devon is ...
, England in the spring of 1990.[ Even more remarkably, what was presumably the same bird returned to this British island for the next two springs as well.][ In 2021 murrelets were sighted in Finland.
]
Behavior
Diet and feeding
Like other auks, ancient murrelets forage by swimming underwater using their wings for propulsion. Their diet is poorly known. In winter it consists mainly of crustacea, while in summer both small fish
Fish are aquatic, craniate, gill-bearing animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish as well as various extinct related groups. Approximately 95% of li ...
, and crustacean
Crustaceans (Crustacea, ) form a large, diverse arthropod taxon which includes such animals as decapods, seed shrimp, branchiopods, fish lice, krill, remipedes, isopods, barnacles, copepods, amphipods and mantis shrimp. The crustacean group ...
s are taken. Based on stable isotope analysis, their diet in Haida Gwaii seems to consist primarily of small mesopelagic fish.
Breeding
Ancient murrelets nest in colonies
In modern parlance, a colony is a territory subject to a form of foreign rule. Though dominated by the foreign colonizers, colonies remain separate from the administration of the original country of the colonizers, the '' metropolitan state'' ...
on islands in the north Pacific, mainly off the coast of North America, but also near Japan and Kamchatka. One of its largest colonies is on Frederick Island in British Columbia. They lay two eggs (sometimes one) in burrows excavated in forest soil among tree roots, under logs or in grass tussocks, occasionally in rock crevices. They arrive at and depart from their nesting grounds at night, presumably to reduce predation, and perhaps for the same reason the young are never fed at the nest, being taken to sea 1–3 days after hatching. The parents and young recognise one another by call and after the chicks have run from the burrow to the sea, they locate their parents by call and the entire family swims immediately out to sea. The family continues to move away from land, usually at night, and will travel a long distance, typically up to , for at least twelve hours. After that, the young are fed exclusively at sea by their parents for more than a month. This species spends less time on land than any other bird.
Status and conservation
The ancient murrelet is listed as of 'Special Concern' by the committee on the Status of Endangered Wildlife in Canada because populations have been greatly reduced over the past century by mammalian predators such as rats introduced to their breeding islands by visiting ships in the 1800s. On one island, the number of breeding pairs was reduced from 200,000 pre-infestation to about 14,000 in the 21st century.
In 2009, a five-year $2.5m Night Birds Returning project was instituted by Parks Canada
Parks Canada (PC; french: Parcs Canada),Parks Canada is the applied title under the Federal Identity Program; the legal title is Parks Canada Agency (). is the agency of the Government of Canada which manages the country's 48 National Parks, th ...
, Haida Nation
The Council of the Haida Nation ("CHN") (''X̱aaydaG̱a Waadlux̱an Naay'') is the elected government of the Haida Nation. The council consists of a president and vice-president elected by popular vote, twelve regional representatives from four ele ...
, Island Conservation and Coastal Conservation to restore Murrelet population by eradicating rats in the Gwaii Haanas National Park Reserve and Haida Heritage Site
Gwaii Haanas National Park Reserve, National Marine Conservation Area, and Haida Heritage Site, usually referred to simply as Gwaii Haanas (), is located in southernmost Haida Gwaii (formerly known as Queen Charlotte Islands), off the mainland of ...
. For success, every single rat needs to be killed as a single pregnant rat can repopulate an island in 1–2 years. In 2011, ground-based eradication was implemented on Arichika and Bischoff islands. Phase 2 consisted of using aerial drops of poisoned pellets selectively attractive to rats. This was conducted in fall of 2013 on Murchison and Faraday islands. Continued monitoring is required for two years before an area can be declared rat-free.
References
{{Authority control
ancient murrelet
Birds of the Aleutian Islands
ancient murrelet
ancient murrelet
Murrelets