They have two little holes above their beak, and that is their nose. They breathe through that usually, unless they have been out in the heat...then sometimes they pant, like a dog, a bit.
Yes , birds breathe through lungs as they live on land.
Birds breathe with lungs. Only fish breathe with gills.
No. Technically, birds don't have a nose. They have a beak. Their beak has nostrils through which they breathe.