 Nesting occurs during a period of several months between April to September , the timing depending on rainfall , during which two clutches are raised by most pairs . Sind sparrows build nests in the upper branches of thorny trees or the ends of thin branches hanging over water . The nest is an untidy dome of grass and other plant matter , such as tamarisk twigs , roots , and reeds , with a diameter of about 9 to 18 cm ( 3 @.@ 5 to 7 @.@ 1 in ) . The nest has an entrance located higher up on the sides , is somewhat flat on top , and is lined with softer plant material and feathers . The birds may sometimes build below the nests of egrets or extend the nest of a <unk> weaver or pied myna . Both the male and female take part in nest building and incubation . Clutches typically contain three to five eggs . Scrope Doig described the eggs as being markedly smaller than the house sparrow 's , measuring 0 @.@ 7 × 0 @.@ 5 in ( 1 @.@ 3 × 1 @.@ 8 cm ) and similarly greenish or greyish with highly variable blotches , striations , and other markings . 
