EAST COAST OF SCOTLAND. 25 



as " Chasers," but in autumn of " Skuas or Norwegian Gulls, 

 very rare." Of Skuas there are four species known in Scotland, 

 viz., the Great Skua, or Bonxie of Shetland ; the Kichardson's 

 Skua, or commonest species ; the Long-tailed, or Buffon's Skua, 

 with very long centre tail-feathers ; and the Pomatorhine Skua, 

 with curious recurved tail-feathers. Perhaps this note may be 

 of service in future in separating them. The Bonxie and the 

 Pomatorhine are rare. In autumn. Skua, or "Dirty Allan," at 

 Isle of May on Oct. 15th, one seen, and well described ; and three 

 seen of " Skua," or ''Norwegian Gull," at Pentland Skerries on 

 19th, and again on 29th. Kittiwakes are recorded, Aug. 5th, at 

 Isle of May ; large numbers. Note. — Most of birds breeding on 

 Isle of May had left by this time, but a number of Kittiwakes 

 remain still; all left by 25th, however. Great Black-backed 

 Gulls noted passing S. past Isle of May on Aug. 13th. " Large 

 White Gulls" (glaucous?) often wheeling round, Aug. 25th, for 

 two or three days ; and a large flight came from N., and flew S. 

 past Isle of May, on Oct. 24th. " Iceland Gulls " at Sumburgh 

 Head, on Dec. 1st and 8th, after gales and rain. Gulls, 

 enormous numbers (and Gannets) passed Isle of May, Sept. 30th. 

 Herring Gulls, a movement S. past Isle of May all day, on 10th. 

 Lesser Black-backed Gulls (called " Lady Ann Gulls ") flying 

 S.E., and numbers on the 14th and 18th. Iceland Gulls (with 

 Swans), two seen at Sumburgh Head, Dec. 25th, and one (last 

 record) on Dec. 8th. The Larger Glaucous Gull is not always 

 easily distinguished from the Lesser Iceland Gull ; both being 

 very white, however, and are in relationship to one another as 

 the Great Black-backed Gull is to the Lesser Black-backed Gull. 

 Land Notes. — At Lerwick a large flock of Common Gulls passed 

 northward in the evening, flying very low, on Oct. 13th. — 

 (J. T. G.) 



Pkocellartid^. — One Stormy Petrel record ; two seen at 

 noon at Auskerry on Sept. 29th ; light variable breezes. 



Alcid^. — In spring, records from Whalsey, Sumburgh Head, 

 and Isle of May. On Feb. 1st, large numbers of Eazorbills and 

 Marrots appeared at Isle of May, light S. breeze ; and again on 

 March 18th; and a great increase on May 3rd; light S.E. 

 Black Guillemots appeared at Whalsey during the night of 

 March 2nd, with light E. S.E. breeze, and clear (called " Ty sties "). 

 At Sumburgh Head, Guillemots (or *' Marrots ") arrived on 



E 



