The bird was unringed which should exclude the origin of a released taken-into-care bird. It might need some care however as it seems to be a little oil-stained and spent some time sitting on the dike. But later today it was swimming and diving actively again. If accepted this will be one of the major unblocking-events of the decade as the last and only "twitchable" Brunnich's Guillemot was seen in 1979! Interestingly this highly Arctic bird favoured exactly the same spot as Orca Morgan.
