Passerine Birds

Passerines are the largest list of birds with more than 5000 species , and most of the birds on earth falls under passerine type,Passerine birds are Within the order of Passeriformes,when looking at the main features if these type of birds they have a toe which faces backwards. ad also many of them have pointed curved claws and most of the Passerines are gifted with unique distinguish sound and also they can make a harmonic noise like a song ,so that they can produce two sounds . 
by Lakshitha