The New South Wales attorney-general, Michael Daley, has been urged to order an inquest into the death of Nepali rough sleeper Bikram Lama in Hyde Park.

The death of Lama – who was also known as “the birdman” for his love of the area’s pigeons – has prompted widespread calls for change, after Guardian Australia revealed last week that the young migrant’s body lay unnoticed for up to a week in bushes near a busy thoroughfare into St James station.

Lama’s family say he came to Australia to study, but he fell out of contact with them, and records show he was deemed a non-resident by the time of his death.…