Love the Porgs, but they look so awkward in flight
I was surprised to see them flying at all. Being penguin shaped, I expected them to be ground-based with vestigial wings that ended up becoming fins for the water.
Seeing them fly was odd because it looked like they flew "upright" all the time, with their head above their feet as if they were standing. The wings definitely flap, but it doesn't look at all like it's actually flying or capable of flight.
Also in the scene where Chewie wanted to chew on his cooked Porg, he shooed two of them away. The two that took off literally floated upward, with some wing flapping but they just lifted out of the scene in a clumsy way.