Final answer:
The type of bird that group of boys shot down a bird similar to a house sparrow, but with a yellow throat patch.
Step-by-step explanation:
A group of boys saw a flying bird which resembled a house sparrow but with a distinctive yellow patch on the throat. His curiosity was piqued since he had never seen such a feature on a sparrow before. The boy's uncle, unable to identify the bird, took him to the Bombay Natural History Society to consult an expert. It is clear from the description that the bird shot by the boy is not a typical house sparrow, which usually lacks such colorful markings.
Considering the details provided, it seems that the bird shot down by the boy could likely belong to the vast group of passerine birds that bear a resemblance to house sparrows but have distinguishing features, such as the yellow throat patch. Since the uncle was not able to satisfy the boy's curiosity and they sought expert advice, it implies that the bird could be of a less common species or perhaps even a juvenile or variation of a more familiar species.
Your question is incomplete, but most probably your full text was
A ten-year-old boy saw a flying bird and shot it down. He ran and picked it up. The bird looked like a house sparrow, but it had a yellow patch on the throat. The child had not seen such spots before. The puzzled boy took the sparrow to his uncle Amiruddeen and asked him what kind of bird it was. His uncle was not able to satisfy his curiosity. He took the boy to the office of Bombay Natural History Society and introduced him to W.S. Millard, the Honorary Secretary of the Society.
What type of bird did the group of boys shoot at