Fig. 1. Change in daily nest survival across the 37-d nest cycle for Loggerhead Shrikes in southeastern Alberta. Values were generated using estimates from the top model (Table 1) and include predicted daily nest survival rates when daily temperature averages 12 and 15°C, and, when precipitation averages 1 and 4 mm per day. Stages of a typical nest cycle include laying (days 1–5), incubation (days 5–20) and nestling (days 21–37).