Assertion: black vulture's bill | /r/HasProperty | fischer
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text: This bird did not differ much from the Black Vulture of today except by its size, which was about 10-15% larger, its relatively flatter and wider bill (Fischer 1944), filled the same ecological niche as the living form (Hertel, 1995), and indeed seems to have evolved into it by becoming smaller during the last ice age (Howard, 1962).