Answer:
The most common beak depths for the non-surviving birds were 8.5 mm and 9 mm. By contrast, beak depths of the birds that survived the drought ranged from 8.0 mm to 11.25 mm, more than half the birds had beak depths between 9.5 mm and 10.5 mm, and the most common beak depth in the 1978 population was 10 mm.
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