Feathers, beak, wings, claws.
Birds can fly because they have feathers that enables them to fly. That, and having hollow bones, being lightweight and flapping their wings to propel them through the air.
How do you say Charateristics?
peaceful
face
bacteria
no tail
this is a good site
A vertebrate has a spine.
it has no characteristics of any kind
one characteristic is that they have broad leaves
sifat means charateristics
there young