Table 1 Annual and region-specific climate data used to examine climate effects on annual apparent survival of western yellow-breasted chats breeding in the south Okanagan valley, British Columbia, Canada

1

Annual

Southern Oscillation Index (SOI_MAY–APR)

Average monthly standardized Southern Oscillation Index (SOI)

2

Breeding ground

Growing degree days (GDD_JAN–MAY)

Sum positive GDD, where GDD = ([T_MAX + T_MIN]/2)—10

Precipitation_OCT–APR

Precipitation_MAY–JUL

Sum daily rainfall (mm)

3

Wintering ground

Precipitation_MAY–NOV

Precipitation_DEC–APR

Sum daily rainfall (mm)

4

Migration route

Precipitation_{NOV–MAY(ARID)}

Sum daily rainfall (mm)

Precipitation_{NOV–MAY(DESERT)}

Sum daily rainfall (mm)

Westerly wind speed (U-wind_APR–MAY)

Average mean daily U-wind speed (m/s) from 6 p.m.–6 a.m.^b at 850 and 925 mb^a

Southerly wind speed (V-wind_APR–MAY)

Average mean daily U-wind speed (m/s) from 6 pm – 6am² at 850mb and 925mb^a

Number of storm nights (Storm_APR–MAY)

Sum of days with extreme (>95 percentile) U or V wind speeds