Cetti’s Warbler Cettia cetti   [Temminck, 1820]

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Order: Passeriformes Family: Sylviidae
BTO Codes: CW, CETWA EURING No: 12200
Number in Britain: 2000 Males (Summer)
Conservation Status:
UK: GREEN
European: Not a species of concern
Global: (Details)
Status in UK: (A)  Resident Breeder, Passage Visitor
Subspecies: cetti recorded in Britain (of 4 subsp. in the world)
.
Length: 14 cm Wingspan: 17 cm Weight: M: 15 g   F: 12 g    
Scientific name from: after Fr Francesco Cetti (1726-78), Italian mathematician and naturalist
World Distribution: s&c Europe to c Asia & Middle East
Habitat: Reedbed, swamp, dense vegetation near water
Diet: Mostly insects from or near the ground
TitBit: Cetti's Warbler is unique amongst British birds in having only ten tail feathers, and in laying bright red eggs.  
Identification Tips:
  Images from IBC or search flickr
  Videos from IBC
  Sound from xeno-canto
Crossley ID photos

Population and Distribution

Population Trend: BirdTrends   
Regional Trends: No regional trends available
Distribution: Atlas Mapstore   
British Population Size:
    Summer: 2000 Males in
    First Record: Hampshire, 1961
    First Breeding Record: Kent 1972
    Latest Survey: Musgrove, A. et al. (2013) British Birds 106:64-100
    Conservation Status: GREEN
   Previous Assessments: 2002-2007 GREEN     1996-2001 AMBER  
   Races of Concern: cetti GREEN
Habitat Occupancy (in the Breeding Season):
    No habitat data from BBS
European Population Size:
    Summer: 600 thousand to 1.6 million pairs   (Trend in Numbers)
Population Assesment from Birds in Europe
Distribution in Europe mapped by the EBCC Atlas
Listed on the Appendices/Schedules of: WCA(I,IV), Bern(III), Bonn(II)
Survey Results: Results from BirdTrack

Breeding and Survival

Egg Size: 18 x 14 mm Egg Weight: 1.8 g (of which 5 % is shell)
Number of Nest Records: 1
Clutch Size: 4 - 5 eggs
Incubation: 16- 17 days   by the: Female
Fledging: 14 - 16days as: Altricial, downy
First Clutches Laid: Unavailable
Number of Broods: 2
See trends in Breeding Productivity
Number Ringed: Annual Totals
Adult Survival: 0.499 ± 0.039       
Juvenile Survival: No data
Age at First Breeding: 1 year Typical Lifespan: 2 years
Maximum Recorded Age: 9 years 3 months 28 days (set in 2008)
Read a summary of Ringing Recoveries

Biometrics

Ring Size: A
Wing Length Sexually dimorphic (male much larger than female)
Male: 63.2 ± 1.9 61 - 66 mm, N =193
Female: 56.5 ± 1.9 54 - 60 mm, N =219
Weight Sexually dimorphic (male much larger than female)
Male: 15.60 ± 1.03 14.40 - 17.10 g , N =185
Female: 12.41 ± 1.20 10.90 - 14.90 g , N =203
Source:
British Trust for Ornithology (2005) Ringing Scheme data

Other Names

 
Gaelic: Welsh: Telor Cetti
Danish: Cettisanger Dutch: Cetti's zanger
Finnish: Silkkikerttunen French: Bouscarle de Cetti
German: Seidensänger Hungarian: Berki poszáta
Icelandic: Blćsöngvari Irish: Ceolaire Cetti
Italian: Usignolo di fiume Norwegian: Cettisanger
Polish: Wierzbówka zwyczajna Portuguese: Rouxinol-bravo
Spanish: Ruiseńor bastardo Swedish: Cettisĺngare

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