For details point at or click the
Treecreeper Certhia familiaris [Linnaeus, 1758]
Other Names
Trends & Distribution
Breeding & Survival
Biometrics
Books & Links
Order:
Passeriformes
Family:
Certhiidae
BTO Codes:
TC , TREEC
EURING No:
14860
Number in Britain:
204 thousand territories (Summer)
Conservation Status:
UK:
GREEN
European:
Not a species of concern
Global:
Least Concern
View video clips from
IBC
Status in UK:
(A) Resident Breeder
Subspecies:
brittanica (R), familiaris (S) recorded in Britain (of 13 subsp. in the world)
.
Length:
12 cm
Wingspan:
19 cm
Weight:
M/F: 10 g
Scientific name from:
Gr.: kerthios =small tree-dwelling bird described by Aristotle and others
and L.: familiaris -familiar
World Distribution:
Europe, n&c Asia
Habitat:
Forest, woodland
Diet:
Insects and spiders also pine/spruce seeds in winter, from crevices in trunk, feeds going up tree
Population and Distribution
Population Trend:
Regional Trends:
Distribution:
New Atlas )
British Population Size:
Summer:
204 thousand territories
in 2000
Note: Best estimate
First Record:
11th Century
Habitat Occupancy (in the Breeding Season):
Most frequent in:
Deciduous Wood
And found in:
Coniferous Wood
Relative Frequency in Each Habitat:
European Population Size:
Summer:
3.7 to 7 million pairs
Birds in Europe
Listed on the Appendices/Schedules of:
Bern(III)
Survey Results:
Breeding and Survival
Egg Size:
16 x 12 mm
Egg Weight:
1.2 g (of which 6 % is shell)
Number of Nest Records:
55
(more would be welcome!)
Clutch Size:
5 - 6 eggs
5.24 ± 1.07 (2 - 9) N = 498
Incubation:
13 - 17 days
14.55 ± 2.06 (12 - 18) N = 498
by the:
Female
Fledging:
15 - 17 days
15.54 ± 1.69 (12 - 19) N = 931
as:
Altricial, downy
Source:
British Trust for Ornithology (2005) Nest Record Scheme data
First Clutches Laid:
27 Apr (5 Apr - 29 May)
Number of Broods:
2
Trends in Breeding Productivity
Number Ringed:
1750
Adult Survival:
0.477
Juvenile Survival:
No data
Age at First Breeding:
1
year
Typical Lifespan:
2
years
Maximum Recorded Age:
8yr0m
Biometrics
Ring Size:
AA
Wing Length
Adult:
63.1 ± 2.1
Range
60 - 66 mm, N =2126
Juvenile:
63.0 ± 2.1
60 - 66 mm, N =1530
Male:
64.4 ± 1.6
62 - 67 mm, N =422
Female:
61.9 ± 1.8
59 - 65.5 mm, N =293
Weight
Adult:
8.79 ± 0.69
Range
7.80 - 10.00 g , N =1762
Juvenile:
8.74 ± 0.69
7.70 - 9.90 g , N =1114
Male:
8.94 ± 0.49
8.20 - 9.80 g , N =360
Female:
8.94 ± 0.89 .
7.80 - 10.50 g , N =226
Source:
British Trust for Ornithology (2005) Ringing Scheme data
Other Names
Eurasia Treecreeper
Gaelic:
Snàgair
Welsh:
Dringwr bach
Danish:
Træløber
Dutch:
Taigaboomkruiper
Finnish:
Puukiipijä
French:
Grimpereau des bois
German:
Waldbaumläufer
Hungarian:
Hegyi fakusz
Icelandic:
Skógfeti
Irish:
Snag
Italian:
Rampichino alpestre
Norwegian:
Trekryper
Polish:
Pelzacz lesny
Portuguese:
Trepadeira-do-bosque
Spanish:
Agateador norteño
Swedish:
Trädkrypare
For More Information...
Books and Monographs:
No books written recently
See Also:
BirdFacts home | BTO Home birdfacts@bto.org These data should be cited as:
© British Trust for Ornithology, | Privacy Statement
button; for sources point at the 
button
Other Names
