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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No regional trends available
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Distribution:
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Atlas Maps
(Local Atlases)
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British Population Size:
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Summer:
3700 to 5500 males
in 2004
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First Record:
10th Century
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Latest Survey:
Conway, G. et al. (2007) Bird Study 54: 98-111
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Conservation Status:
RED
because
Recent Breeding Range Decline (1969-2007)
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Previous Assessments:
2002-2007
RED
1996-2001
RED
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Races of Concern:
europaeus RED (Recent Decline)
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UK Biodiversity Action Plan
(Lead Partner: RSPB)
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Habitat Occupancy (in the Breeding Season):
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No habitat data from BBS
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European Population Size:
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Summer:
370 to 700 thousand pairs
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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:
WBD(I), Bern(III)
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Survey Results:
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BirdTrack
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Nightjar Survey 2004
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Breeding and Survival
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Egg Size:
32 x 22 mm
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Egg Weight:
8.4 g (of which 6 % is shell)
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Number of Nest Records:
53
(more would be welcome!)
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Clutch Size:
2 eggs
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1.94 ± 0.25 (1 - 3) N = 461
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Incubation:
18 days
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18.12 ± 0.69 (17 - 19.5) N = 461
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by the:
Male + Female
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Fledging:
18 - 19days
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17.88 ± 1.10 (16 - 19.5) N = 695
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as:
Precocial, 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 Jun (23 May - 23 Jul)
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Number of Broods:
1-2
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Trends in Breeding Productivity
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Number Ringed:
156
(Annual Totals)
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Adult Survival:
0.690
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Juvenile Survival:
No data
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Age at First Breeding:
1
year
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Typical Lifespan:
4
years
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Maximum Recorded Age:
11 years 0 months 10 days (set in 1992)
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Summary of Ringing Recoveries
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Biometrics
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Ring Size:
C
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Wing Length
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Adult:
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196.1 ± 5.3
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Range
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187 - 204 mm, N =426
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Juvenile:
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188.9 ± 8.6
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173 - 200 mm, N =81
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Male:
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196.1 ± 5.1
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188 - 204 mm, N =323
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Female:
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196.3 ± 6.0
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185 - 205.5 mm, N =100
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Weight
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Adult:
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73.26 ± 7.45
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Range
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63.00 - 88.00 g , N =363
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Juvenile:
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70.77 ± 8.37
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60.00 - 83.00 g , N =81
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Male:
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71.92 ± 7.00
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62.00 - 86.00 g , N =278
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Female:
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77.71 ± 7.32
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66.00 - 90.00 g , N =82
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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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European Nightjar
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Gaelic:
Seabhag-oidhche
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Welsh:
Troellwr
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Danish:
Natravn
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Dutch:
Nachtzwaluw
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Finnish:
Kehrääjä
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French:
Engoulevent d´Europe
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German:
Ziegenmelker
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Hungarian:
Lappantyú
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Icelandic:
Náttfari
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Irish:
Tuirne Lín
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Italian:
Succiacapre
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Norwegian:
Nattravn
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Polish:
Lelek zwyczajny
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Portuguese:
Noitibó da Europa
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Spanish:
Chotacabras gris
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Swedish:
Nattskärra
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Local Names:Fern Owl
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For More Information...
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Books and Monographs:
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Holyoak, D.T. 2001 Nightjars and their allies Oxford University Press
[598.72 HOL]
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Tate, P. 1989 The Nightjar Shire Publications, Princes Risborough
[Jour: S]
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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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