|
|
British Population Size:
|
Summer:
6157 to 7549 pairs
in 1999
|
|
First Record:
Recorded in Medieval times
|
|
Latest Survey:
Wotton, S.R. et al. (2002) Bird Study 49:26-34
|
|
Conservation Status:
RED
because
Recent Breeding Population Decline (1981-2007),
|
|
Previous Assessments:
2002-2007
RED
1996-2001
AMBER
|
|
Races of Concern:
torquatus RED (Recent Decline)
|
|
|
|
Habitat Occupancy (in the Breeding Season):
|
|
No habitat data from BBS
|
|
|
|
Migration routes:
Map of foreign ringing recoveries
and summary map from Time to Fly (in pop-up windows)
|
|
|
|
Average Day of First Arrival:
28 Mar
|
|
|
|
European Population Size:
|
|
Summer:
185 to 570 thousand pairs
|
|
Population Assesment from Birds in Europe
|
|
Distribution in Europe mapped by the EBCC Atlas
|
|
|
|
Listed on the Appendices/Schedules of:
Bern(III), Bonn(II)
|
|
|
Breeding and Survival
|
|
Egg Size:
30 x 22 mm
|
Egg Weight:
7.4 g (of which 6 % is shell)
|
|
|
|
Number of Nest Records:
45
(more would be welcome!)
|
|
Clutch Size:
4 eggs
|
4.00 ± 0.51 (2 - 6) N = 305
|
|
Incubation:
13 days
|
13.18 ± 0.57 (12.5 - 14.5) N = 305
|
by the:
Male + Female
|
Fledging:
14 - 14days
|
13.71 ± 0.57 (12.5 - 14.5) N = 738
|
as:
Altricial, downy
|
|
Source:
|
British Trust for Ornithology (2005) Nest Record Scheme data
|
|
|
|
|
First Clutches Laid:
4 May (19 Apr - 8 Jun)
|
|
Number of Broods:
1-2
|
|
See trends in Breeding Productivity
|
|
Number Ringed:
Annual Totals
|
|
Adult Survival:
0.420
± 0.010
(M:0.470
± 0.020;
F:0.370
± 0.020)
|
Juvenile Survival:
0.360 (in First-Year)
|
|
|
|
Age at First Breeding:
1
year
|
Typical Lifespan:
2
years
|
|
Maximum Recorded Age:
6 years 5 months 23 days (set in 1980)
|
|
Read a summary of Ringing Recoveries
|
|
|
Biometrics
|
|
Ring Size:
C
|
|
Wing Length
|
Adult:
|
143.4 ± 3.6
Range
133.0 - 152.0 mm, (N = 139)
|
|
|
Juvenile:
|
142.5 ± 3.7
Range
124.0 - 152.0 mm, (N = 394)
|
|
|
Male:
|
145.0 ± 3.1
Range
136.0 - 152.0 mm, (N = 75)
|
|
|
Female:
|
141.4 ± 2.8
Range
134.0 - 150.0 mm, (N = 62)
|
|
|
|
Weight
|
Adult:
|
105.8 ± 11.59
Range
75.00 - 143.0 g , (N =127)
|
|
|
Juvenile:
|
104.0 ± 9.6
Range
81.1 - 134.5 . , (N =361)
|
|
|
Male:
|
106.3 ± 12.26
Range
75.00 - 140.0 g , (N =66)
|
|
|
Female:
|
105.3 ± 10.71
Range
78.00 - 143.0 g , (N =59)
|
|
|
Seasonal:
|
Summer 104.6 ± 10.63 (N = 57)
Autumn 108.9 ± 9.79 (N = 125)
|
|
|
Source:
|
British Trust for Ornithology (2005) Ringing Scheme data
|
|
|
Other Names
|
|
|
|
|
|
Gaelic:
Lňn-monaidh
|
Welsh:
Mwyalchen y Mynydd
|
|
Danish:
Ringdrossel
|
Dutch:
Beflijster
|
|
Finnish:
Sepelrastas
|
French:
Merle ŕ plastron
|
|
German:
Ringdrossel
|
Hungarian:
Örvös rigó
|
|
Icelandic:
Mánaţröstur
|
Irish:
Lon Creige
|
|
Italian:
Merlo dal collare
|
Norwegian:
Ringtrost
|
|
Polish:
Drozd obrozny
|
Portuguese:
Merlo-de-peito-branco
|
|
Spanish:
Mirlo capiblanco
|
Swedish:
Ringtrast
|
|
|
|
|
|
|
|
|
For More Information...
|
|
Books and Monographs:
|
|
Simms, E. 1978 British Thrushes Collins, London
[598.911 SIM]
|
|
|
|
See Also:
|
Find scientific papers on  Google Scholar
or  Scirus by clicking the icon
|
|
Wikipedia entry
|
|
BirdLife species page
|
|
Recent sightings and information from BirdGuides
|
|
Read State of the Nations Birds by Chris Mead
|
|
|
