Beija-Flor is the portuguese name for the hummingbird...literally, beija = kiss, flor = flower.
This one flew in the bedroom window as I was lying in bed reading. My wife seems to think it could sense (smell?) the sugar she was using when she was baking in the kitchen, but I'm not sure about that.
It seemed a little afraid of the flash, & I didn't really have much time to use a tripod; not the best photograph.
I think this is the Glittering-Bellied Emerald as it's known in english, Besourinho-de-bico-vemelho in portuguese.

Chlorostilbon aureoventris