Brontornis was the heaviest member of the terror bird family. Although Brontornis was similar in height to Kelenken, it was more heavily built. Brontornis weighed 350 to 400 kg. This made Brontornis the third heaviest bird known.
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Brontornis was the heaviest member of the terror bird family. Although Brontornis was similar in height to Kelenken, it was more heavily built. Brontornis weighed 350 to 400 kg. This made Brontornis the third heaviest bird known.