Population and Distribution
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Population Trend:
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 Wider Countryside Report
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Regional Trends:
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Wales
England
English Regions
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Distribution:
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Atlas Maps
(Local Atlases)
BBS Maps
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British Population Size:
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Summer:
144 thousand territories
in 2000
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First Record:
15th Century
[Fossil evidence from
Middle Pleistocene, c. 500,000 yr ago]
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Conservation Status:
GREEN
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Previous Assessments:
2002-2007
GREEN
1996-2001
GREEN
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Races of Concern:
caesia GREEN
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Habitat Occupancy (in the Breeding Season):
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Most frequent in:
Deciduous Wood
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Relative Frequency in Each Habitat:
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European Population Size:
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Summer:
6.5 to 14 million pairs
(Trend in Numbers)
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Population Assesment from Birds in Europe
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Distribution in Europe
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Listed on the Appendices/Schedules of:
Bern(III)
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Survey Results:
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BirdTrack
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Garden BirdWatch
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Breeding and Survival
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Egg Size:
20 x 15 mm
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Egg Weight:
2.3 g (of which 6 % is shell)
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Number of Nest Records:
137
(more would be welcome!)
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Clutch Size:
6 - 8 eggs
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6.66 ± 1.30 (2 - 10) N = 823
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Incubation:
16- 17 days
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15.85 ± 1.54 (13 - 18.5) N = 823
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by the:
Female
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Fledging:
24 - 25days
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24.07 ± 1.13 (22 - 25.5) N = 1811
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as:
Altricial, downy
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Source:
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British Trust for Ornithology (2005) Nest Record Scheme data
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First Clutches Laid:
23 Apr (10 Apr - 6 May)
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Number of Broods:
1(2)
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Trends in Breeding Productivity
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Number Ringed:
1442
(Annual Totals)
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Adult Survival:
0.510
(M:0.550
;
F:0.470
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Juvenile Survival:
No data
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Age at First Breeding:
1
year
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Typical Lifespan:
2
years
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Maximum Recorded Age:
11 years 9 months 10 days (set in 1997)
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Summary of Ringing Recoveries
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Biometrics
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Ring Size:
B
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Wing Length
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Adult:
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84.1 ± 2.2
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Range
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81 - 88 mm, N =1283
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Juvenile:
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84.2 ± 2.0
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81 - 88 mm, N =352
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Male:
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85.2 ± 1.9
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82 - 88 mm, N =617
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Female:
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82.9 ± 1.8
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80 - 86 mm, N =628
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Weight
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Adult:
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22.11 ± 1.33
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Range
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20.00 - 24.40 g , N =1027
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Juvenile:
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21.64 ± 1.41
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19.10 - 23.80 g , N =310
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Male:
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22.48 ± 1.25
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20.50 - 24.60 g , N =505
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Female:
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21.74 ± 1.33
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19.80 - 24.00 g , N =487
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Source:
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British Trust for Ornithology (2005) Ringing Scheme data
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Other Names
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Wood / Eurasian Nuthatch
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Gaelic:
Sgoltan
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Welsh:
Delor y Cnau
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Danish:
Spętmejse
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Dutch:
Boomklever
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Finnish:
Pähkinänakkeli
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French:
Sittelle torchepot
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German:
Kleiber
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Hungarian:
Csuszka
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Icelandic:
Hnotigša
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Irish:
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Italian:
Picchio muratore
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Norwegian:
Spettmeis
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Polish:
Kowalik zwyczajny
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Portuguese:
Trepadeira-azul
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Spanish:
Trepador comśn
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Swedish:
Nötväcka
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For More Information...
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Books and Monographs:
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Matthysen, E. 1998 The nuthatches Poyser, London
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See Also:
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Find scientific papers on  Google Scholar
or  Scirus by clicking the icon
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Wikipedia entry
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BirdLife species page
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Recent sightings and information from BirdGuides
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State of the Nations Birds by Chris Mead
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