Clutch sizes in O. o. oenanthe (mean ± SD), arranged roughly by latitude. (Where mean clutches were for an entire region, latitude was estimated as the approximate center of the region.)
Location
Mean Clutch
n
Source
Kazakhstan
4.96
25
(1
Panov, E. N. (2005). Wheatears of Palearctic: Ecology, Behaviour and Evolution of the Genus Oenanthe. Pensoft, Sofia and Moscow.
)
Tien Shan, Kyrgyzstan
5
19
(1
Panov, E. N. (2005). Wheatears of Palearctic: Ecology, Behaviour and Evolution of the Genus Oenanthe. Pensoft, Sofia and Moscow.
)
Switzerland (alpine)
3.6
173
C. Meier personal communication
Switzerland (alpine)
5.4
(261
Wartmann, D. A. (1985). Comparative investigations on population-, breeding- and trophic ecology of Anthus spinoletta and Oenanthe oenanthe in the Dishma Valley GR. Phd Thesis, Univ. of Zurich, Zurich, Switzerland.
), in (284
Moreno, J. (1989). The breeding biology of the Wheatear Oenanthe oenanthe in south Sweden during three contrasting years. Journal of Ornithology. 130: 321–334.
)
Rhinehessen, Germany
4.67 ± 1.0
625
(211
Buchmann, M. (2001). Die Brutbiologie des Steinschmätzers (Oenanthe oenanthe) auf intensiv genutzten Flächen in Rheinland-Pfalz. [The breeding biology of the Wheatear (Oenanthe oenanthe) in intensively managed areas in Rhineland-Palatinate.] Vogelwarte 41:1–17.
)
Skokholm, UK
5.5 ± 0.9
227
(4
Conder, P. J. (1989). The Wheatear. Christopher Helm, London, United Kingdom.
)
Shropshire, UK
5.42
297
(93
Fulton, D. (2010). The breeding population of Northern Wheatears at Clee Hill, Shropshire, 1998-2009. British Birds 103:223-228.
)
Breckland, UK
5.7 ± 0.1
52
(285
Tye, A. (1980). The breeding biology and population size of the wheatear (Oenanthe oenanthe) on the Breckland of East Anglia, with implications for its conservation. Bulletin of Ecology 11:559-569.
)
Transbaikalia, Russia
5.75
53
(1
Panov, E. N. (2005). Wheatears of Palearctic: Ecology, Behaviour and Evolution of the Genus Oenanthe. Pensoft, Sofia and Moscow.
)
Netherlands
5.2 ± 1.0
147
(161
van Oosten H. H. (2016). Comparative breeding biology of three insectivorous songbirds in Dutch dune grasslands. Ardea 104:199–212.
)
Öland, Sweden
6.2 ± 0.7
79
(207
Moreno, J. (1989). The breeding biology of the wheatear Oenanthe oenanthe in south Sweden during three contrasting years. Journal of Ornithology 130:321–334.
)
Uppland, Sweden
5.9
37
(2
Cramp, S., Editor (1988). The Birds of the Western Palearctic, Volume 5: Tyrant Flycatchers to Thrushes. Oxford University Press, Oxford, United Kingdom.
)
Finland
6.1
48
(286
von Haartman, L. (1969). The nesting habits of Finnish birds. Commentationes Biologicae 32. 187 pp.
)
Alaska, USA
6.9 ± 1.2
9
(287
Kessel, B. (1989). Birds of the Seward Peninsula, Alaska: Their Biogeography, Seasonality and Natural History. University of Alaska Press, Fairbanks, AK, USA.
)
Yamal Peninsula, Russia
5.68 ± 0.12
31
(288
Ryzhanovskii, V. N., V. K. Ryabitsev, and A. V. Gilev (2019). Fecundity of passerine birds (Passeriformes) in the Ob Forest Tundra and Yamal Peninsula. Russian Journal of Ecology 50:280–288.
)