We report on mortality caused by an evening hailstorm to a night-time roost of Great-tailed Grackles (Quiscalus mexicanus) and European Starlings (Sturnus vulgaris) in Austin, Texas. The hailstorm was of short duration (6 min), and hail stones were not too large (most <20 mm in diameter). Approximately 7% of female grackles, 12% of male grackles, and 26% of starlings died. Greater mortality in male grackles suggests that preferred roost locations were more exposed to hail.
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Vol. 119 • No. 2