A 30ft-long whale that died after it became stranded in a Welsh estuary was a one-year-old male calf that was struggling to find food, an autopsy has revealed. The fin whale, named Henry by rescuers, is thought to have been recently weaned by his mother and started to live independently - as they stop receiving milk at around six to seven months old - before becoming beached. The young male died on the sands of the Dee Estuary, North Wales, on June 14. He had beached at least twice over the previous two days. A post-mortem was carried out by the Cetacean Strandings Investigation Programme (CSIP) to identify the cause of death and find out why the whale ended up out of the sea.