Guillemots at the Opera

A sight seeing trip to the Opera in Oslo revealed 4 Guillemots offshore one of which was freshly dead

The bird felt still warm and also seemed to have good fat levels so there was no obvious cause of death although the lower mandible was loose so maybe it had hit a boat?? Nearby was a dead juvenile Herring Gull which also had no obvious cause of death.
The Guillemots all appeared to be adults and it is unusual to have them so far in the fjord at this time of year. Presumeably they have had a bad breeding season and little food to find in their usual areas. A few Common Terns were making a lot of noise with young begging for food.