From: Variation in egg and clutch size of the Black Redstart (Phoenicurus ochruros) at the northeastern edge of the Qinghai-Tibetan Plateau
Year
Egg volume (cm3)
Clutch size
March and April
Mean temperature (°C)
Mean precipitation (mm)
2008
2.40
4.90
0.85
15.05
2009
2.26
5.20
1.40
27.10