Harelda glacialis – An occasional winter visitor; rare.
There are two immature birds of this species in Lord Cawdor’s collection that had been shot at Stackpole. Mr. Tracy informed Mr. Dix that one was shot at Haverfordwest, on June 15th, 1843, a remarkable date for this northern bird to have been found so far to the south. From his description, this specimen appears to have been in almost complete summer plumage. It had one white scapular feather, and a few white feathers on the crown of the head, and on the back of the neck ; the white feathers remaining on the head and neck were about a quarter of an inch longer than the others.