 The Sind sparrow is very similar to the house sparrow , and both sexes resemble their counterparts of that species , but it is slightly smaller and males and females each have features that distinguish them as Sind sparrows . The Sind sparrow is 13 cm ( 5 @.@ 1 in ) long , while the common South Asian subspecies of the house sparrow , Passer domesticus indicus , is about 15 cm ( 5 @.@ 9 in ) long . Wingspans range from 6 @.@ 2 to 7 @.@ 0 cm ( 2 @.@ 4 to 2 @.@ 8 in ) , tails from 4 @.@ 7 to 5 @.@ 7 cm ( 1 @.@ 9 to 2 @.@ 2 in ) , and tarsi measure 1 @.@ 6 – 1 @.@ 9 centimetres ( 0 @.@ 63 – 0 @.@ 75 in ) . 
