Possibly a porpoise ?

Rhossili beach, Wales, June 1st : Initially we noticed the smell and at first sight I thought it was a seal, but on closer inspection it appeared to be a dolphin, or possibly a porpoise.

A grim sight, though without a post mortem - or even identification - impossible to tell why it ended up here.

All week we'd been noticing the death slumber of a calf, washed up towards the southern end of the beach. Perhaps it had slipped from the cliff at high tide, or fallen into the sea elsewhere and been dumped by the waves above the high water mark.