Effects of Protocalliphora braueri (Diptera: Calliphoridae) parasitism and inclement weather on nestling sage thrashers.

Infection with blow fly larvae (Protocalliphora braueri) had no effect on sage thrasher (Oreoscoptes montanus) nestling weight or size at fledging nor on mean fledging age. However, the combination of cold, wet weather and parasite infection did significantly reduce nestling survival and the percent young fledged.