Assertion: black vulture's bill | /r/HasProperty | 3.9 in
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Source sentences:
text: The bill, at up to 10 cm (3.9 in) long and 5 cm (2.0 in) deep, ranks as one of the largest of any accipitrid, although a reported culmen length of 7.2 cm (2.8 in) is slightly less than the culmen length of the cinereous vulture.