Just three things for the record:
Hooded Crow: only found in western UK. and will breed with yer average crow, but I like the pinkishness of it.
a seal or silkie (locally). The second name is useful here because it means either the harbour or grey seal, and I know not which this is. hanging about as we headed off for Mousa Island
Guillemots at least a hundred feet below us, but the stink of their guano rose to meet us.