Goldeneye

Goldeneye

Bucephala clangula
Goldeneye, Edmund Fellowes

Introduction

This striking duck, with its piercing eye and large rounded head, was first recorded nesting here in the 1970s, since when a relatively small but expanding breeding population has become established.

Goldeneye use tree cavities and nest boxes for breeding, our current population centred on northern Scotland but with isolated records from England. The species a range of freshwater habitats for breeding.

Wintering birds join our breeders from October and are thought to be mostly birds from the Scandinavian breeding population. Individuals can be seen widely in winter, occupying both coastal and inland sites, sometimes in large numbers (e.g. 500 plus).

Goldeneye, Edmund Fellowes

Key Stats

Status
Common
Common
Weight
Weight
887.5g
Eggs
Eggs
8-11
BTO Records
BTO Records
490k records
Population and distribution stats for:
Population Change
Population Change
54% decrease 1997 to 2022
Distribution Change
Distribution_change
-1% contraction

Identification

Curated resources to aid in the identification of Goldeneye

Songs and Calls

Listen to example recordings of the main vocalisations of Goldeneye, provided by xeno-canto contributors.

Call:

Alarm call:

Flight call:

Movement

Information about Goldeneye movements and migration based on online bird portals (e.g. BirdTrack), Ringing schemes and tracking studies.

Britain & Ireland movement

View a summary of recoveries in the Online Ringing Report

Foreign locations of birds ringed or recovered in Britain & Ireland

Dots show the foreign destinations of birds ringed in Britain & Ireland, and the origins of birds ringed overseas that were subsequently recaptured, resighted or found dead in Britain & Ireland. Dot colours indicate the time of year that the species was present at the location.

  • Winter (Nov-Feb)
  • Spring (Mar-Apr)
  • Summer (May-Jul)
  • Autumn (Aug-Oct)
Foreign locations of birds ringed or recovered in Britain & Ireland

European movements

EuroBirdPortal uses birdwatcher's records, such as those logged in BirdTrack to map the flows of birds as they arrive and depart Europe. See maps for this species here.

The Eurasian-African Migration Atlas shows movements of individual birds ringed or recovered in Europe. See maps for this species here.

Biology

Lifecycle and body size information for Goldeneye, including statistics on nesting, eggs and lifespan based on BTO ringing and nest recording data.

Productivity and Nesting

Nesting timing

Typical (exceptional) number of broods
1

Egg measurements

Typical length x width
59x43 mm
Mass (% shell)
57g (11%)

Clutch Size

Typical number
8-11 eggs
Observed minimum and maximum
5-13 eggs

Incubation

Incubation by
Female
Typical duration
29-30 days

Fledging

Type of chick
Precocial, downy
Typical duration
57-66 days

Survival and Longevity

Survival is shown as the proportion of birds surviving from one year to the next and is derived from bird ringing data. It can also be used to estimate how long birds typically live.

View number ringed each year in the Online Ringing Report.

Lifespan

Typical life expectancy of bird reaching breeding age
6 years with breeding typically at 2 years
Maximum age from a ringed bird
12 years, 18 days (set in 2008)

Survival of adults

All adults
0.772±0.034
Females
0.772±0.034

Biometrics

Wing length and body weights are from live birds (source).

Ring Size

G (breeding females F)

Classification, names and codes

Taxonomy, names and species codes for Goldeneye

Classification and Codes

  • Order: Anseriformes
  • Family: Anatidae
  • Scientific name: Bucephala clangula
  • Authority: Linnaeus, 1758
  • BTO 2-letter code: GN
  • BTO 5-letter code: GOLDE
  • Euring code number: 2180

Alternate species names

  • Catalan: morell d'ulls grocs
  • Czech: hohol severní
  • Danish: Hvinand
  • Dutch: Brilduiker
  • Estonian: sõtkas
  • Finnish: telkkä
  • French: Garrot à oeil d’or
  • Gaelic: Lach-bhreac
  • German: Schellente
  • Hungarian: kerceréce
  • Icelandic: Hvinönd
  • Irish: Órshúileach
  • Italian: Quattrocchi
  • Latvian: gaigala, nira
  • Lithuanian: paprastoji klykuole
  • Norwegian: Kvinand
  • Polish: gagol
  • Portuguese: olho-dourado
  • Slovak: hlaholka severská
  • Slovenian: zvonec
  • Spanish: Porrón osculado
  • Swedish: knipa
  • Welsh: Hwyaden Lygad Aur
  • English folkname(s): Rattlewing

Research

Interpretation and scientific publications about Goldeneye from BTO scientists.

Causes of Change and Solutions

Causes of change

The drivers behind the initial colonisation of Scotland are unclear but the subsequent increases may have been aided by the provision of nest boxes within its core range in Scotland (Dennis & Dow 1984). Predation by Pine Martens has been identified as the most important factor affecting breeding success (Langridge 1996) and there are also concerns about the possible impact of the expanding non-native Mandarin Duck population through competition for nest sites (Cosgrove 2003). There is currently no evidence of any negative impact on the population from these or other factors although the population trend has not been monitored since 2010.

Publications (3)

Waterbirds in the UK 2022/23

Author: Woodward, I.D., Calbrade, N.A., Birtles, G.A., Feather, A., Peck, K., Wotton, S.R., Shaw, J.M., Balmer, D.E. & Frost, T.M.

Published: Winter 2024

It provides a single, comprehensive source of information on the current status and distribution of waterbirds in the UK for those interested in the conservation of the populations of these species ...

25.04.24

Reports Waterbirds in the UK

Download file

Behavioural responses of non-breeding waterbirds to marine traffic in the near-shore environment

Author: Jarrett, D., Calladine, J., Cook, A.S.C.P., Upton, A., Williams, J.,Williams, S., Wilson, J.M., Wilson, M.W., Woodward, I. & Humphreys, E.M.

Published: 2022

Marine traffic is increasing globally, but there has been little research investigating the impact of this disturbance, particularly for non-breeding populations in near-shore environments. This study ...

02.09.22

Papers

View on journal website

The status of our bird populations: the fifth Birds of Conservation Concern in the United Kingdom, Channel Islands and Isle of Man ...

Author: Stanbury, A.J., Eaton, M.A., Aebischer, N.J., Balmer, D., Brown, A.F., Douse, A., Lindley, P., McCulloch, N., Noble, D.G. & Win, I.

Published: 2021

Commonly referred to as the UK Red List for birds, this is the fifth review of the status of birds in the UK, Channel Islands and Isle of Man, published in December 2021 as Birds of Conservation ...

01.12.21

Reports Birds of Conservation Concern

Download file

More Evidence

More evidence from Conservation Evidence.com

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