examples of birds [1]
There are more than 9,000 species of birds scattered around the world.
finch 
Widespread bird with a melodious song.
sparrow 
Bird that feeds mainly on seeds and insects; it is widespread in cities and in the countryside.
swallow 
Widespread in the Northern hemisphere and found in highly diverse habitats; it usually feeds on insects caught in flight.
hummingbird 
Tiny brightly colored bird with a long thin bill found on the North American continent; it can hover and fly backward.
European robin 
European perching bird found in woods and gardens characterized by a bright red throat and chest and emitting a fairly loud, lively melodious song.