290 STUDIES IN BIRD-MIGKATION 



examples were sent, and belonged to the typical 

 form. 



ACANTHIS ROSTRATA (AcANTHIS LINARIA ROSTRATA), 



Greater Redpoll. — One was captured at the lantern 

 during the second week of October 191 1, and was sent 

 for determination. 



Passer domesticus, House Sparrow, — Mr Tomison 

 tells us that this bird is seen at intervals for a few 

 days about midsummer — a remarkable circumstance, 

 but vouched for by a most accurate and capable 

 observer. 



LoxiA curvirostra, Crossbill. — Sule Skerry came 

 within the area invaded by the remarkable irruption of 

 Crossbills which swept over our islands during the 

 summer of 1909. Their incursion into this remote islet 

 was heralded by the appearance and capture of a bird at 

 the lantern on 28th June. More followed, and forty-two 

 was the largest number observed. They remained on this 

 bleak, and indeed desert island, from a Crossbill's point 

 of view, for about three weeks. Mr Moore, the light- 

 keeper, tells me that he found several dead amid the 

 territory occupied by the Arctic Terns, and he is of 

 opinion that the Terns put them to death for venturing 

 within the precincts of their domain. 



Emberiza miliaria, Co7^n - BMnting. — Appears 

 irregularly. A large flock arrived in December 1899, 

 and remained nearly a month. 



Emberiza pusilla, Little Bunting. — One was killed 

 at the lantern on 22nd September 1908, and sent for 

 identification — the second Orcadian record. 



Calcarius lapponicus, Lapland Bunting. — I saw 

 several of these birds on the island during my visit on 

 22nd September 1904. 



