Overview
- The Loon is the most proficient of foot-propelled underwater swimmers. A powerful forward thrust is provided by simultaneously kicking its feet outward, then bringing them backward and toward each other. The tarsus is flattened, and a long forward extension of the tibia permits a larger flexor muscle of the tarsus. The upper portion of the leg and its muscles fit smoothly into the streamlined body.
Interesting Facts
Common Names
Click on the language to view common names.
Common Names in Albanian:
Nori Polar
Common Names in Asturian:
Cal
Common Names in Basque:
Aliota Handia
Common Names in Breton:
Ar Splujer Bras
Common Names in Catalan:
Cal
Common Names in Czech:
Pot
Common Names in Danish:
Islom
Common Names in Dutch:
IJsduiker
Common Names in English:
American Common Loon, big loon, black-billed loon, calling-up-a-storm, Common Loon, ember-goose, Great Northern Diver, Great Northern Loon, greenhead, guinea duck, imber diver, lesser black-billed loon, ring-necked loon, walloon
Common Names in Esperanto:
Granda Kolimbo
Common Names in Estonian:
J
Common Names in Faroese:
Havg
Common Names in Finnish:
Amerikanj
Common Names in French:
Huart , plongeon huard, Plongeon imbrin
Common Names in Gaelic, Irish:
Bun-Bhuachaille
Common Names in Galician:
Cal
Common Names in German:
Eistaucher
Common Names in Hungarian:
Jeges B
Common Names in Icelandic:
Himbrimi
Common Names in Inuktitut:
Tudlik
Common Names in Irish:
L
Common Names in Italian:
Strolaga maggiore
Common Names in Japanese:
Hashiguroabi, ハシグロアビ
Common Names in Latin:
Gavia imber
Common Names in Latvian:
Polara Gargale
Common Names in Lithuanian:
Ledinis Naras
Common Names in Manx:
Arrag Vooar
Common Names in Norwegian:
Islom
Common Names in Polish:
(Nur) Lodowiec, Lodowiec
Common Names in Portuguese:
Mob
Common Names in Romansh:
Sfunsella Da Glatsch
Common Names in Russian:
Полярная гагара
Common Names in Serbian:
Morski Gnjurac Veliki
Common Names in Slovak:
Pot
Common Names in Slovenian:
Ledni Slapnik
Common Names in Spanish:
Colimbo, Colimbo Grande, Colimbo mayor
Common Names in Spanish (Cuba):
Somormujo
Common Names in Spanish (Mexico):
Colimbo Com
Common Names in Swedish:
Islom, Svartn, Svartnäbbad islom
Common Names in Turkish:
Buz Dalgici
Common Names in Welsh:
Trochydd Mawr
Description
Physical Description
Adult : Head : glossy black with greenish sheen Face : Eye Color: red-brown Bill: black Curvature: straight Shape : stout Body: Back: checkered black and white.
Color:
Adult
alternate: Black bill · Black head
· Black neck
with white markings · White chest and belly · Black
back with white checkering and spotting
Adult basic: Pale
gray bill · Gray-brown cap, forehead, nape,
hindneck and back · White face
, eye ring, chin, throat
, foreneck
and belly · Jagged border
between white foreneck and dark
hindneck
Immature
: Like basic-plumaged adult but often with paler bill and
white scalloping on back
Size/Age/Growth
About 28 to 36 inches long, with a wingspan of 50 to 58 inches. Adults weigh about 145.6 ounces .
Habitat
Vegetation: freshwater marshes, coastal waters • Sensitivity to Disturbance: Medium
Typically found at an altitude of 0 to 3,869 meters (0 to 12,694 feet).[1]
Ecology:
Behaviour This species is strongly migratory, with inland
breeding populations moving south or to the coast after breeding1.
The species breeds from May onwards in isolated solitary pairs, nesting
later further to the north depending on the timing of the thaw1.
Adults
become flightless for a short time in late-winter when they
moult their flight feathers3. During the winter
the species occurs singly, in pairs or in small loose
flocks in marine
habitats2, 3, occasionally also forming large congregations
of c.3001, 3. Habitat Breeding The
species breeds on large, deep freshwater
lakes
in coniferous
forest
or on open tundra1, requiring clear water with
visibilities of at least 3-4 m
and small islands (less than 2.5 ha)
for nesting7. Non-breeding It winters along
the coast on exposed rocky shores
, sheltered bays1,
channels
and sheltered inlets2 showing a preference
for shallow inshore
waters7. It may also be found
inland1 on lakes and reservoirs
during this season2,
although this is largely influenced by the weather7.
Diet Its diet
consists predominantly of fish as well as crustaceans,
molluscs
, aquatic
insects, annelid worms, frogs
, other amphibians
and plant matter (e.g.
Potamogeton spp.
, willow
Salix spp. shoots
, roots
, seeds, moss and algae)1.
Breeding site The nest
is a mound of plant matter screened
by vegetation2 and placed near the water's edge1
on islands, islets
or promontories2. Management
information There is evidence that introducing floating nesting
platforms on lakes is successful in increasing the reproductive success
of the species5, 7, and that nest losses caused
by flooding can be reduced by controlling water levels during the
nesting period7. Mortality
from entanglement and
drowning in fishing nets
could also be reduced by using fish traps
with openings at the top to allow birds to escape
, or by checking
traps more regularly for captured birds7.
[2].
List of Habitats
:
- 5 Wetlands (inland)
- 5.5 Wetlands (inland) - Permanent Freshwater Lakes (over 8ha)
- 5.10 Wetlands (inland) - Tundra Wetlands (incl. pools and temporary waters from snowmelt)
- 9 Marine Neritic
- 9.1 Marine Neritic - Pelagic
- 9.2 Marine Neritic - Subtidal Rock and Rocky Reefs
- 9.3 Marine Neritic - Subtidal Loose Rock/pebble/gravel
- 9.4 Marine Neritic - Subtidal Sandy
- 9.5 Marine Neritic - Subtidal Sandy-Mud
- 9.7 Marine Neritic - Macroalgal/Kelp
- 9.9 Marine Neritic - Seagrass (Submerged)
- 9.10 Marine Neritic - Estuaries [more info]
Biology
Diet
Primarily:
Fish
Lesser Quantities of: Aquatic
Invertebrates
Reproduction
- Breeding Habitat : Wetland-open water
- Clutch Size: 2
- Length of Incubation : 26-31 days
- Days to Fledge : 75-80
- Number of Broods: 1
Migration
migratory
Taxonomy
- Domain:
Eukaryota
(
)
- Whittaker & Margulis,1978
- eukaryotes
- Kingdom:
Animalia
(
)
- C. Linnaeus, 1758
- animals
- Subkingdom:
Bilateria
(
)
- (Hatschek, 1888) Cavalier-Smith, 1983
- Branch:
Deuterostomia
(
)
- Grobben, 1908
- Infrakingdom:
Chordonia
(
)
- (Haeckel, 1874) Cavalier-Smith, 1998
- Phylum:
Chordata
(
)
- Bateson, 1885
- Chordates
- Subphylum:
Vertebrata
(
)
- Cuvier, 1812
- Infraphylum:
Gnathostomata
(
)
- auct.
- Jawed Vertebrates
- Superclass:
Tetrapoda
(
)
- Goodrich, 1930
- Subclass:
Avialae
(
)
- Gauthier, 1986
- Infraclass:
Aves
(
)
- (C. Linnaeus, 1758)
- Cohort:
Neognathae
(
)
- Pycraft, 1900
- Superorder:
Gaviomorphae
(
)
- B.C. Livezey & R.L. Zusi, 2007
- Order:
Gaviiformes
(
)
- Wetmore & W.D. Miller, 1926
- Suborder:
Ciconii
(
)
- Infraorder:
Ciconiides
(
)
- Parvorder:
Ciconiida
(
)
- Series:
href="http://www.biodiversitylibrary.org/title/493
(
)
- Superfamily:
Procellarioidea
(
)
- Superfamily:
Procellarioidea
(
- Series:
href="http://www.biodiversitylibrary.org/title/493
(
- Parvorder:
Ciconiida
(
- Infraorder:
Ciconiides
(
- Suborder:
Ciconii
(
- Order:
Gaviiformes
(
- Superorder:
Gaviomorphae
(
- Cohort:
Neognathae
(
- Infraclass:
Aves
(
- Subclass:
Avialae
(
- Superclass:
Tetrapoda
(
- Infraphylum:
Gnathostomata
(
- Subphylum:
Vertebrata
(
- Phylum:
Chordata
(
- Infrakingdom:
Chordonia
(
- Branch:
Deuterostomia
(
- Subkingdom:
Bilateria
(
- Kingdom:
Animalia
(
Synonyms
Gavia immer (Brunnich, 1764) • Gavia immer (Brnnich, 1764)
Notes
Name
Status: Accepted Name
.
Last scrutiny: 13-Jun-2007
Similar Species
Yellow-Billed Loon
Members of the genus Gavia
ZipcodeZoo has pages for 11 species and subspecies in this genus:
G. adamsii (White-Billed Northern Diver) · G. arctica (Green-Throated Black-Billed Loon) · G. arctica arctica (Arctic Loon) · G. arctica pacifica (Arctic Loon) · G. arctica viridigularis (Arctic Loon) · G. immer (Lesser Black-Billed Loon) · G. immer elasson (Lesser Black-Billed Loon) · G. immer immer (Lesser Black-Billed Loon) · G. pacifica (Pacific Diver) · G. stellata (Pepper-Shinned Loon) · G. stellata stellata (Pepper-Shinned Loon)
More Info
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Further Reading
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- A biological survey of the sand dune region on the south shore of Saginaw Bay, Michigan. Prepared under the direction of Alexander G. Ruthven. Lansing, Mich.: Wynkoop, Hallenbeck, Crawford co., state printers, 1911. url p. 276, p. 329.
- A biological survey of the waters of Woods Hole and vicinity / By Francis B. Sumner, Raymond C. Osburn, and Leon J. Cole. Washington: Govt. Print. Off., 1913 url p. 582, p. 775, p. 845.
- A checklist of the vertebrate animals of Kansas / George D. Potts, Joseph T. Collins. [Lawrence, Kan.]: Museum of Natural History, University of Kansas, 1991. url p. 6.
- A distributional list of the birds of Montana, with notes on the migration and nesting of the better known species, by Aretas A. Saunders. Berkeley, Calif., The Club, 1921. url p. 28.
- A faunal investigation of Long Point and vicinity, Norfolk County, Ontario / [Toronto: Royal Ontario Museum of Zoology], 1931. url p. 147.
- A faunal investigation of Prince Edward County, Ontario / Toronto: University of Toronto Press, 1941. url p. 26.
- A faunal investigation of the Lake Nipigon region, Ontario / [Toronto: Royal Ontario Museum of Zoology], 1928. url p. 252.
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- A faunal investigation of western Rainy River District, Ontario / [Toronto: Royal Ontario Museum of Zoology], 1938. url p. 181.
- A hand-list of British birds, with an account of the distribution of each species in the British Isles and abroad. By Ernst Hartert, F. C. R. Jourdain, N. F. Ticehurst and H. F. Withersby. London, Witherby, 1912. url p. 159.
- A history of the birds of Colorado, London, Witherby & Co., 1912. url .
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- A history of the game birds, wild-fowl and shore birds of Massachusetts and adjacent states: including those used for food which have disappeared since the settlement of the country, and those which are now hunted for food or sport, with observations on their former abundance and recent decre Boston: Wright & Potter printing company, state printers, 1912. url p. 50, p. 50.
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Notes
Contributors
- BirdLife International 2009. Gavia immer. In: IUCN 2011. IUCN Red List of Threatened Species. Version 2011.2. <www.iucnredlist.org>. Downloadedon 01February2012.
- Brands, S.J. (comp.) 1989-present. The Taxonomicon. Universal Taxonomic Services, Zwaag, The Netherlands. Accessed January 10, 2012.
- IUCN 2012. IUCN Red List of Threatened Species. Version 2011.2. . Downloaded on January 28, 2012.
Data Sources
Accessed through GBIF Data Portal November 12, 2007:
- Avian Knowledge Network, eBird
- Biologiezentrum der Oberoesterreichischen Landesmuseen, Biologiezentrum Linz
- Canadian Biodiversity Information Facility, North West Territories and Nunavut Bird Checklist, Canada
- Canadian Biodiversity Information Facility, Ontario Nest Records
- Canadian Biodiversity Information Facility, Provincial Museum of Alberta, Edmonton, AB, Canada. Birds
- Canadian Biodiversity Information Facility, Royal British Columbia Museum
- Museum of Vertebrate Zoology, Terrestrial vertebrate specimens
- New Brunswick Museum, NBM birds
- Royal Ontario Museum, Bird specimens
- Santa Barbara Museum of Natural History, Santa Barbara Musem of Natural History
- UNIBIO, IBUNAM, CNAV/Coleccion Nacional de Aves
Identifiers
- Biodiversity Heritage Library NamebankID: 1
- Catalogue of Life Accepted Name Code: ITS-174469
- Global Biodiversity Information Facility Taxonkey: 2481685
- Integrated Taxonomic Information System (ITIS) Taxonomic Serial Number (TSN): 174469
- IUCN ID: 210812
- Natural Heritage Network Species Identifier: ABNBA01030
- Zipcode Zoo Species Identifier: 7213
Footnotes
- Mean = 255.120 meters (837.008 feet), Standard Deviation = 528.570 based on 7,517 observations. Altitude information for each observation from British Oceanographic Data Centre. [back]
- BirdLife International 2009. Gavia immer. In: IUCN 2011. IUCN Red List of Threatened Species. Version 2011.2. <www.iucnredlist.org>. Downloaded on 01 February 2012. [back]
