Slavonian Grebe Podiceps auritus   [Linnaeus, 1758]

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Date created: 23-January-2017

Order: Podicipediformes Family: Podicipedidae
BTO Codes: SZ, SLAGR EURING No: 110
Number in Britain: 30 Pairs (Summer)
Conservation Status:
UK: RED
European: Near Threatened
Global: Vulnerable (Details)
Status in UK: (A)  Resident Breeder, Winter Visitor
Subspecies: auritus recorded in Britain (of 2 subsp. in the world)
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Length: 34 cm Wingspan: 62 cm Weight: M/F: 410 g    
Scientific name from: L.: podex=anus + pes=foot and L.: aurus=ear
World Distribution: BREEDS: local in n Eurasia, Canada WINTERS: south to s Europe, s China and s US
Habitat: Marshes, lakes and streams, Winter also coastal
Diet: Arthropods, especially insects, fish
TitBit: It will regularly eat its own feathers to form a matted plug in its stomach, this may serve as a filter or hold fish bones until they can be digested; the parents even feed feathers to their chicks.  
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Identification Tips:
  Images from IBC or search flickr
  Videos from IBC
  Sound from xeno-canto
Crossley ID photos BTO ID Workshop

Population and Distribution

Population Trend: No population trend available
Distribution: No distribution maps available
British Population Size:
    Summer: 30 Pairs in
    Winter: 1100 individuals in 2004/05 - 2008/09
    First Record: Cornwall, 1796
    First Breeding Record: Inverness-shire 1908
    Latest Survey: Musgrove, A. et al. (2013) British Birds 106:64-100
    Conservation Status: RED because Globally Threatened, Recent Breeding Population Decline (1981-2010), Recent Winter Population Decline (1981-2010), Recent Breeding Range Decline (1969-2010), Recent Winter Range Decline (1981-2010),
   Previous Assessments: 2009-2014 AMBER     2002-2007 AMBER     1996-2001 AMBER  
   Races of Concern: auritus RED (Recent Decline)
Habitat Occupancy (in the Breeding Season):
    No habitat data from BBS
European Population Size:
    Summer: 4800 to 8 thousand pairs
Population Assesment from Birds in Europe
Distribution in Europe mapped by the EBCC Atlas
Listed on the Appendices/Schedules of: WCA(I), WBD(I),Bern(II), Bonn(II), AEWA
Survey Results:

Breeding and Survival

Egg Size: 45 x 31 mm Egg Weight: 22.5 g (of which 10 % is shell)
Number of Nest Records: 3
Clutch Size: 4 - 5 eggs
Incubation: 22- 25 days   by the: Female (occ. Male)
Fledging: 55 - 60days as: Precocial, downy
First Clutches Laid: Unavailable
Number of Broods: 1(2)
Number Ringed: Annual Totals
Adult Survival: No data
Juvenile Survival: No data
Age at First Breeding: Typical Lifespan: No data
Maximum Age from Ringing: 4 years 9 months 2 days (set in 2006)
Read a summary of Ringing Recoveries

Biometrics

Ring Size: F*
Wing Length Adult: Insufficient Data
Juvenile: Insufficient Data
Male: Insufficient Data
Female: Insufficient Data
Weight Adult: Insufficient Data
Juvenile: Insufficient Data
Male: Insufficient Data
Female: Insufficient Data

Other Names

Horned Grebe
Gaelic: Gobhlachan-mara Welsh: Gwyach Gorniog
Danish: Nordisk lappedykker Dutch: Kuifduiker
Finnish: Mustakurkku-uikku French: Grèbe esclavon
German: Ohrentaucher Hungarian: Füles vöcsök
Icelandic: Flórgoði Irish: Foitheach Cluasach
Italian: Svasso cornuto Norwegian: Horndykker
Polish: Perkoz rogaty Portuguese: Mergulhão-de-pescoço-castanho
Spanish: Zampullín cuellirrojo Swedish: Svarthakedopping

For More Information...

Books and Monographs:
   Ogilvie, M. 2003 Grebes of the world Bruce Coleman Books, Uxbridge [598.43 OGI]
   Fjeldsa, J. 2005 The Grebes Oxford University Press [598.43 FJE]
Links from ConservationEvidence.com:
See Also:
Google Scholar search for scientific papers
Wikipedia entry
HBW account (subscription required)
BirdLife species page
Recent sightings and information from BirdGuides
All About Birds (from the Cornell Lab of Ornithology)