A Puffin
Yes.
There are no candles that are safe for a bird to breathe if it is lit and burning. If the candle is unlit then is is ok. So if you are going to have candles going it would be best for your bird if it was kept in a different room. Or if it is neer the candles make it out in an open, ventilated area.
they have heads, they breathe, they're both living
it is like morse code
lungsPeacock is a bird. All birds breathe by lungs
it is unhealthy so you should often clean the cage.
yes, bats can breath like bird or mammals.
Penguins are birds, they are not fish, even though they do swim very well. They have lungs and the breathe the same way that any other bird breathes.
Yes, but they breathe air too, thru the labyrinth organ. In fact if you don't let them get to the top of the tank they can suffocate.
Ducks breathe the same way as us humans
pretty much like any other bird - with lungs that expand and contract.