Pigeon

What’s up with the “quite some”, is this not in the right context or what?

It's just non-idiom, the sort of thing that really good non-native speakers will say that instantly betrays them! Like the tricky difference between present perfect and past tenses - it's all but impossible for foreigners to score 100% on that. Or when I get a gender wrong in a Latin language - something no native would ever do! Anyway, I like languages but it's of zero importance.

When you see those clueless creatures on the streets, just trying to mirror the moves

Had never noticed this. I am not as observant as you. But I like to think more observant than most people when it comes to pigeons.

My pet theory on pigeons, part of the reason I'm interested in them, is that they are the mirror reflection of humans. Which is why so many people hate them. They're scruffy, they eat junk, there's too many of them, they're literally the same shade as concrete and tarmac. People kick them away because nobody wants to be reminded of of how feral we are. They throw back in our face everything that we hate about ourselves. And maybe also because we subconsciously need an underclass to hate and despise. They fill the role of peasants and serfs in feudal society.

But perhaps I'm overthinking it!