Same with insects like bumblebees and flies. You sit outside, you see a bug approach at high speed and land perfectly on a leaf. Wow pretty cool. Now with slow mo you see them crash into the leaf, do a summersault, stumble around and sit down. It just happens fast so you don't notice, but they crash almost every landing.
Ha. Same with starlings. Known for the great synchronised murmuration patterns. I've seen them collide. It's not a big issue though, because they don't crash down to ground. They've got wings and just fly back up into the .. murmur.
They don't just hit each other.
A few years ago, I was riding my bike (as in bicycle, not motorbike). A bat hit me head-on. Right on the, err, gentleman's sausage.
If you were hoping for Batman super powers, I regret to inform you that he doesn't have any. However, if your billionaire parents were killed in front of you as a child, you may be in luck.
Same thing happened to me. Right at dusk, just riding along on my bike and outta nowhere a bat wrapped its wings around my head. It felt like getting lightly smacked by a warm, moist leather glove.
I'm only half-joking. Who knows... maybe some ultra-sonic transistor whine went unnoticed by human ears, but was deafening to the echo-locators... or infra-red blinding because we are wrong somewhat about how their eyes work.