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Other unscripted moments arrived courtesy of the O’Mearas’ peach-colored cockatoo, Kittyhawk.

If ignored for too long, Kittyhawk would protest.

That tended to render Kittyhawk mute.

Separately during the pre-Paris briefings, Brian Yutko — a former Boeing vice president in charge of air mobility and now CEO of Boeing-backed air taxi venture Wisk — announced that Boeing has bought out the other owner, KittyHawk, and taken full control of Wisk.

Some start-ups have abruptly gone under, including the flying car company Kittyhawk, the autonomous vehicle start-up Argo AI and the interior design start-up Modsy.