As for the collective noun, this
site suggests:
Quote:
colony of penguins
crèche of penguins
huddle of penguins
parcel of penguins
rookery of penguins
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But these are really boring and I am sure we can do better.
A tuxedo of penguins (on land).
A torpedo of penguins (submerged).
A trajectory of penguins (a big line jumping from sea to shore)