Greenfinch

Greenfinch

Chloris chloris
Greenfinch, Edmund Fellowes

Introduction

This stocky finch can be found throughout in Britain & Ireland at all times of the year, except on the highest peaks.

The Greenfinch has a twittering song, which features a distinct drawn-out wheeze. It is a bold species and can enter into squabbles with other birds at garden feeders. It is also found in open woodland and farmland. Males have distinctive green plumage, with yellow in the wing and tail. Females and juveniles are duller.

The Greenfinch has undergone a major population decline in the UK since the mid-2000s, due to the disease Trichomonosis. It was added to the UK Red List in 2021. In the winter, Greenfinch numbers are supplemented by birds migrating from Fennoscandia.

  • Our Trends Explorer gives you the latest insight into how this species' population is changing.
Greenfinch, Edmund Fellowes

Key Stats

Status
Common
Common
Weight
Weight
27.7g
Eggs
Eggs
4-5
BTO Records
BTO Records
7m records
Population and distribution stats for:
Population Change
Population Change
67% decrease 1967 to 2023
Distribution Change
Distribution_change
6.2% expansion

Identification

Curated resources to aid in the identification of Greenfinch

ID Videos

This section features BTO training videos headlining this species, or featuring it as a potential confusion species.

Green finches in your garden

GBW: Goldfinch and Greenfinch

#BirdSongBasics: Greenfinch and Goldfinch

Songs and Calls

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

Song:

Call:

Begging call:

Movement

Information about Greenfinch 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 Greenfinch, including statistics on nesting, eggs and lifespan based on BTO ringing and nest recording data.

Productivity and Nesting

Nesting timing

Average (range) fo first clutch laying dates
10 May (5 Apr-5 Jul)
Typical (exceptional) number of broods
2

Egg measurements

Typical length x width
20x15 mm
Mass (% shell)
2.2g (5%)

Clutch Size

Typical number
4-5 eggs
Average ±1 standard deviation
4.72±0.74 eggs
Observed minimum and maximum
2-7 eggs

Incubation

Incubation by
Female
Typical duration
14 days
Observed average ±1 standard deviation
13.7±1.42 days
Observed minimum and maximum
11-16.5 days

Fledging

Type of chick
Altricial, downy
Typical duration
13.5-16 days
Observed average ±1 standard deviation
14.92±2.12 days
Minimum and maximum
11-18.5 days
N=3724, -Source
Visit our Trends Explorer for trend graphs and country statistics.

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
2 years with breeding typically at 1 year
Maximum age from a ringed bird
11 years, 3 months, 24 days (set in 1998)

Survival of adults

All adults
0.443±0.006
Females
0.472±0.019
Males
0.468±0.015

Survival of juveniles

All juveniles
0.416±0.013 (in first year)
Visit our Trends Explorer for trend graphs and country statistics.

Biometrics

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

Wing length

Average ±1 std deviation; range and sample size in brackets.
Juvenile
87.5±2.2 mm
(84-91 mm, N=72205)
All adults
87.7±4.2 mm
(84-91 mm, N=118743)
Female
86.3±4 mm
(83-89 mm, N=52565)
Male
88.8±4.1 mm
(86-92 mm, N=65831)

Body weight

Average ±1 std deviation; 5th and 95th percentiles and sample size in brackets.
Juvenile
27.7±2.9 g
(25-30.7 g, N=55415)
All adults
27.7±4.1 g
(24.7-30.9 g, N=96718)
Female
27.8±4.5 g
(24.9-31.1 g, N=43027)
Male
27.5±3.6 g
(24.6-30.6 g, N=53386)
Visit our Trends Explorer for trend graphs and country statistics.

Ring Size

B

Classification, names and codes

Taxonomy, names and species codes for Greenfinch

Classification and Codes

  • Order: Passeriformes
  • Family: Fringillidae
  • Scientific name: Chloris chloris
  • Authority: Linnaeus, 1758
  • BTO 2-letter code: GR
  • BTO 5-letter code: GREFI
  • Euring code number: 16490

Alternate species names

  • Catalan: verdum europeu
  • Czech: zvonek zelený
  • Danish: Grønirisk
  • Dutch: Groenling
  • Estonian: rohevint
  • Finnish: viherpeippo
  • French: Verdier d’Europe
  • Gaelic: Glaisean-daraich
  • German: Grünfink
  • Hungarian: zöldike
  • Icelandic: Grænfinka
  • Irish: Glasán Darach
  • Italian: Verdone
  • Latvian: zalžubite
  • Lithuanian: europine žaliuke
  • Norwegian: Grønnfink
  • Polish: dzwoniec (zwyczajny)
  • Portuguese: verdelhão / verdilhão
  • Slovak: zelienka obycajná
  • Slovenian: zelenec
  • Spanish: Verderón común
  • Swedish: grönfink
  • Welsh: Llinos Werdd
  • English folkname(s): Green Grosbeak/Linnet

Research

Interpretation and scientific publications about Greenfinch from BTO scientists.

Causes of Change and Solutions

Causes of change

The rapid decline since 2005 has been caused by a severe outbreak of trichomonosis.

Further information on causes of change

The sudden sharp fall that began in 2005 was induced by a widespread and severe outbreak of trichomonosis, a disease which affects the upper digestive tract (Robinson et al. 2010b, Lawson et al. 2012b, 2018). Integrated population modelling shows that changes in survival have indeed been the strongest contributor to annual population change (Robinson et al. 2014).

Productivity data show minor decreases in clutch and brood sizes, but no change in the number of fledglings per breeding attempt. The trend towards earlier laying may be explained by recent climate change (Crick & Sparks 1999).

Information about conservation actions

The recent population downturn has been directly linked to the spread of trichomonosis (Lawson et al. 2014), and hence hygiene precautions are important in gardens where food and water is being provided, and stopping feeding should be considered if birds with the disease are observed see here. The rate of decline has not yet slowed down and it is unclear whether improved garden hygiene will halt the decline.

As for Chaffinch, there have been no conservation concerns about this species until recently; hence there are no specific conservation actions relating to this species. However, assuming some birds are resistant to trichomonosis, actions and policies aimed at helping other farmland species are also likely to benefit Geenfinches and may enable numbers to recover in the future. These would include actions aimed at increasing food availability over winter (e.g. overwinter stubbles, wild bird seed or cover mixtures, set-aside, buffer strips or uncultivated margins) and those aimed at improving breeding habitat and food availability during the breeding season (e.g. management of hedgerows and reducing pesticide and herbicide use).

Publications (6)

Breeding periods of hedgerow-nesting birds in England

Author: Hanmer, H.J. & Leech, D.I.

Published: Spring 2024

Hedgerows form an important semi-natural habitat for birds and other wildlife in English farmland landscapes, in addition to providing other benefits to farming. Hedgerows are currently maintained ...

05.03.24

BTO Research Reports BTO Research Reports

Download file

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

The risk of extinction for birds in Great Britain

Author: Stanbury, A., Brown, A., Eaton, M., Aebischer, N., Gillings, S., Hearn, R., Noble, D., Stroud, D. & Gregory, R.

Published: 2017

The UK has lost seven species of breeding birds in the last 200 years. Conservation efforts to prevent this from happening to other species, both in the UK and around the world, are guided by species’ ...

01.09.17

Papers

More Evidence

More evidence from Conservation Evidence.com

Partners

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