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Sedge Warbler Acrocephalus schoenobaenus [Linnaeus, 1758]
Other Names
Trends & Distribution
Breeding & Survival
Biometrics
Books & Links
Order:
Passeriformes
Family:
Sylviidae
BTO Codes:
SW , SEDWA
EURING No:
12430
Number in Britain:
297 thousand territories (Summer)
Conservation Status:
UK:
GREEN
European:
Not a species of concern
Global:
Least Concern
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Status in UK:
(A) Migrant Breeder, Passage Visitor
Subspecies:
Monotypic
.
Length:
13 cm
Wingspan:
19 cm
Weight:
M/F: 12 g
Scientific name from:
Gr.: akros =pointed + kephale =head
and Gr.: skhoiniklos =a reed + baino =to walk
World Distribution:
BREEDS: Eurasia (except e), WINTERS: tropical & s Africa
Habitat:
Reedbed, marshes
Diet:
Insects, some plant material in winter, often low down in dense vegetation
TitBit:
The Sedge Warbler is good mimic, and introduces phrases into its song in random, so it never sings the same song twice; those males with the widest range phrases attract the most matings from females
Population and Distribution
Population Trend:
Regional Trends:
Distribution:
New Atlas )
British Population Size:
Summer:
297 thousand territories
in 2000
First Record:
1766
Habitat Occupancy (in the Breeding Season):
Most frequent in:
Reedbed, Along Rivers
And found in:
Estuaries, Lakes, Ponds
Relative Frequency in Each Habitat:
Average Day of First Arrival:
16 Apr
European Population Size:
Summer:
3.1 to 4.9 million pairs
Birds in Europe
Listed on the Appendices/Schedules of:
Bern(III), Bonn(II)
Survey Results:
Breeding and Survival
Egg Size:
18 x 13 mm
Egg Weight:
1.6 g (of which 6 % is shell)
Number of Nest Records:
86
(more would be welcome!)
Clutch Size:
5 eggs
5.02 ± 0.75 (2 - 7) N = 1446
Incubation:
14 days
13.48 ± 0.86 (12 - 16) N = 1446
by the:
Female
Fledging:
13 - 14 days
12.71 ± 1.13 (11 - 15) N = 2166
as:
Altricial, naked
Source:
British Trust for Ornithology (2005) Nest Record Scheme data
First Clutches Laid:
23 May (7 May - 5 Jul)
Number of Broods:
1(2)
Trends in Breeding Productivity
Number Ringed:
28630
Adult Survival:
0.483
Juvenile Survival:
No data
Age at First Breeding:
1
year
Typical Lifespan:
2
years
Maximum Recorded Age:
7yr11m
(Finland: 10yr 1m)
Biometrics
Ring Size:
A
Wing Length
Adult:
65.5 ± 1.9
Range
62 - 68 mm, N =22838
Juvenile:
64.8 ± 1.7
62 - 67 mm, N =44228
Male:
66.3 ± 1.6
64 - 69 mm, N =5545
Female:
64.2 ± 1.5
62 - 67 mm, N =4969
Weight
Adult:
11.41 ± 1.06
Range
10.00 - 13.20 g , N =20329
Juvenile:
10.93 ± 1.31
9.60 - 12.70 g , N =41859
Male:
11.21 ± 0.76
10.10 - 12.50 g , N =4697
Female:
11.61 ± 1.22 .
10.00 - 13.90 g , N =4219
Source:
British Trust for Ornithology (2005) Ringing Scheme data
Other Names
Gaelic:
Loiliseag
Welsh:
Telor yr Hesg
Danish:
Sivsanger
Dutch:
Rietzanger
Finnish:
Ruokokerttunen
French:
Phragmite des joncs
German:
Schilfrohrsänger
Hungarian:
Foltos nádiposzáta
Icelandic:
Síkjasöngvari
Irish:
Ceolaire Cíbe
Italian:
Forapaglie
Norwegian:
Sivsanger
Polish:
Rokitniczka
Portuguese:
Felosa-dos-juncos
Spanish:
Carricerín común
Swedish:
Sävsångare
For More Information...
Books and Monographs:
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See Also:
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