Hummingbirds are the world smallest birds.
They each weigh about 3g
and can flap their wings 80x a second

There was this one hummingbird that actually flew out of its house and in to another, where it got pureed by an inward fan.
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They eat nectar, which is found deep in flowers

That's right, they just spear their beaks into an innocent flower, drive it in, and suck the fluids out of it. Then they fly off. Just imagine it....