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Blackbird Turdus merula   [Linnaeus, 1758]
Other Names Trends & Distribution Breeding & Survival Biometrics Books & Links
Order: Passeriformes Family: Turdidae
BTO Codes: B. , BLABI EURING No: 11870
Number in Britain: 4.6 million territories (Summer)
Conservation Status:
UK: GREEN
European: Not a species of concern
Global: Least Concern
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Status in UK: (A)  Migrant/Resident Breeder, Passage/Winter Visitor
Subspecies: merula recorded in Britain (of 16 subsp. in the world)
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Length: 24 cm Wingspan: 36 cm Weight: M/F: 100 g    
Scientific name from: L.: turdus=a thrush and L.: merual=the blackbird
World Distribution: Europe & w Asia, INTRODUCED: Australia
Habitat: Woodland, scrub, towns
Diet: Mainly insects and earthworms, also fruit, mostly from ground
TitBit: Originally woodland birds, the Blackbird is a partial migrant, with individuals migrating different distances; one colour-ringed Blackbird that breeds in a garden in Norfolk makes it way to an almost identical garden in Devon every winter  
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Population and Distribution
Population Trend: Wider Countryside Report
Regional Trends: Scotland   Wales   England   English Regions
Distribution: Atlas Maps    (Help with the New Atlas)    BBS Maps
British Population Size:
    Summer: 4.6 million territories in 2000
    First Record: 8th Century
Habitat Occupancy (in the Breeding Season):
    Most frequent in: Villages, Towns
    Also common in: Scrub, Arable Farmland, Pasture Farmland, Deciduous Wood
    And found in: Coniferous Wood
Relative Frequency in Each Habitat:
European Population Size:
    Summer: 38 to 79 million pairs   (Trend in Numbers)
Population Assesment from Birds in Europe
Distribution in Europe
Listed on the Appendices/Schedules of: WCA(III), WBD(II*), Bern(III), Bonn(II)
Survey Results: BirdTrack
Garden BirdWatch
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Breeding and Survival
Egg Size: 29 x 21 mm Egg Weight: 7.2 g (of which 6 % is shell)
Number of Nest Records: 1544
Clutch Size: 3 - 4 eggs 3.86 ± 0.75 (2 - 7) N = 3254
Incubation: 13 - 14 days 12.97 ± 1.34 (11 - 16) N = 3254 by the: Female
Fledging: 14 - 16 days 14.64 ± 1.54 (12 - 17) N = 3892 as: Altricial, downy
Source:
British Trust for Ornithology (2005) Nest Record Scheme data
First Clutches Laid: 22 Apr (22 Mar - 14 Jun)
Number of Broods: 2-3(5)
Trends in Breeding Productivity

Number Ringed: 28596
Adult Survival: 0.65 Juvenile Survival: 0.564 (in First-Year)
Age at First Breeding: 1 year Typical Lifespan: 3 years
Maximum Recorded Age: 14yr2m   (Germany: 21yr 1m)
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Biometrics
Ring Size: C
Wing Length Adult: 130.8 ± 4.4 Range 124 - 138 mm, N =81803
Juvenile: 129.8 ± 3.9 124 - 136 mm, N =53822
Male: 132.9 ± 3.9 126 - 139 mm, N =42493
Female: 128.6 ± 3.8 123 - 134 mm, N =39130
Weight Adult: 101.8 ± 12.09 Range 87.00 - 122.0 g , N =65475
Juvenile: 100.0 ± 9.34 86.00 - 116.0 g , N =42885
Male: 102.5 ± 12.56 87.00 - 124.0 g , N =33791
Female: 101.1 ± 11.54 . 86.00 - 120.0 g , N =31528
Source:
British Trust for Ornithology (2005) Ringing Scheme data
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Other Names
Common Blackbird
Gaelic: Lòn-dubh Welsh: Mwyalchen
Danish: Solsort Dutch: Merel
Finnish: Mustarastas French: Merle noir
German: Amsel Hungarian: Feketerigó
Icelandic: Svartþröstur Irish: Lon Dubh
Italian: Merlo Norwegian: Svarttrost
Polish: Kos Portuguese: Merlo-preto
Spanish: Mirlo común Swedish: Koltrast
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For More Information...
Books and Monographs:
   Snow, D.W. 1958 A study of blackbirds George Allen Unwin Ltd, London [598.911 SNO]
   Snow, D.W. 1987 The Blackbird Shire Publications, Princes Risborough [Jour: S]
   Hillstead, A.F.C. 1945 The Blackbird Faber & Faber, London [598.911 HIL]
See Also:
Wikipedia entry
State of the Nations Birds by Chris Mead
Recent sightings and information from BirdGuides.com
Selected scientific papers published 1980-2005
Find more papers on Google Scholar
Find more papers on Scirus

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Email: birdfacts@bto.org

These data should be cited as:
Robinson, R.A. (2005) BirdFacts: profiles of birds occurring in Britain & Ireland (v1.22, Oct 2008). BTO Research Report 407, BTO, Thetford (http://www.bto.org/birdfacts)

 

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