I am going to play this whenever trick-or-treaters come to the door this Hallowee.
The Dryptosaurus (starts at 1:54) in particular is eerie, sounding like a mix of a giant bird, a mutant ape or monkey, and the Joker.
seen from Spain

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seen from Bolivia
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seen from Australia
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seen from United Kingdom

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I am going to play this whenever trick-or-treaters come to the door this Hallowee.
The Dryptosaurus (starts at 1:54) in particular is eerie, sounding like a mix of a giant bird, a mutant ape or monkey, and the Joker.

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Since you seem to have a better grasp on dinosaurs vocalization than I do, do you think dinosaurs could have been capable of mimicry? Ive seen nothing to disprove it anatomically, but even troodon EQs don't come close to birds that exhibit mimicry.
Probably not for that reason - didn’t have the brainpower for it. Which is a bummer, but hey, modern dinosaurs can!