i 9 o THE SCOTTISH NATURALIST 



The Little Gull, Larus minutus. See p. 151. 



The Black-headed Gull, Larus ridibundus. A good deal of 

 movement of this species is recorded during March; there were 

 many at St Andrews on 15th April, but all had left by the 19th, 

 while at 1 a.m. on nth May great numbers were at the Little Ross 

 lantern. Between 19th May and 20th June large parties of year-old 

 birds frequented the coast of East Fife, while return of adults to 

 Largo Bay is noted on 20th June, on 5th July two young birds 

 appeared at Summerston, and large numbers there on 29th July. 



The Common Gull, Larus can us canus. Unusual numbers of 

 immature birds visited the shores of Fife from 19th to 27th May, 

 and on 9th September twenty Common Gulls were feeding on 

 insects on the top of the Sidlaws. 



The Herring-gull,. Larus argentatus argentatus. At 3.30 a.m. 

 on 25th February a Herring-gull struck the Little Ross lantern 

 and was killed an unusual occurrence. Many appeared at the 

 Isle of May on 13th March, and all the Herring -gulls left 

 St Andrews on 19th April. 



The Lesser Black-backed Gull, Larus fuscus britannicus. 

 Is first reported from Summerston on 4th March, and Glasgow 

 Harbour on 12th March ; after this arrivals are noted up to mid-April. 

 Last seen in Largo Bay on 14th September. 



The Glaucous Gull, Larus glaucus. One is recorded at 

 Lerwick on 12th January, and two at North Unst on 26th September. 



The Iceland Gull, Larus feucoftterus. Two were seen at 

 Dhuheartach on 3rd October and 17th November, single birds 

 at Swona on 13th and 15th October, and Whalsay Skerries on 

 1 8th November. 



The Kittiwake, Rissa tridactyla tridactyla. Many were seen 

 about the cliffs of the Isle of May and North Unst on 14th March, 

 and they settled on the former cliffs on 21st March. On 2nd April 

 large numbers were on the Cullen sands, and small flocks passed 

 Whalsay Skerries going north from nth to 18th April. At 10 p.m. 

 on 15th August a Kittiwake struck the Muckle Flugga lantern. 



The Great Skua, Stercorarius skua skua. First seen at North 

 Unst on 13th April, and at Foula two days later, while further 

 arrivals are recorded up to 18th May. Last seen at North Unst 

 on 26th September. 



