REPORT ON SCOTTISH ORNITHOLOGY IN 1917 183 



The Gannkt, Si/la bassana. A few were seen about North 

 Unst all January, several at the Isle of May on 27th January, and 

 more there on 9th February, after which there are many notes 

 of this species. Last records come from Eyemouth on 2nd 

 November, and an immature bird in Largo Bay two days later. 



The Storm Petrel, Hydrobates pelagicus. One was killed 

 at the Barra Head lantern on 3rd August and a few at the 

 Muckle Flugga lantern between 10 p.m. and midnight on 15th 

 August. 



The Fulmar, Fidmarus glarialis glacialis. A few are noted 

 about Whalsay Skerries up to 28th March, six at Sule Skerry 

 on 20th April, and one or two at Lerwick from 17th May to 

 4th July. Single birds visited Dhuheartach on 10th September 

 and 15th November, some returned to Barra Head on 8th 

 November, and one was at Sule Skerry on 24th November. 



The Great Crested Grebe, Podiceps cristatus cristatus. This 

 species was first seen on Bardowie Loch (Clyde) on 1st April; one 

 was in the sea off St Andrews on 14th April, "arrived to nest on the 

 local lochs " about Dundee in early May, and one was seen in Largo 

 Bay in summer plumage on 7th June. Single birds were seen on 

 Methven Loch on 22 nd September and Dupplin Loch on 26th 

 September. 



The Slavonian Grebe, Podiceps auritus. Single birds are 

 recorded at Bardowie Loch on 8th March and 28th October, and 

 at Balgray Reservoir (Renfrewshire) on 12th August (1. 1918, 22). 



The Little Grebe, Podiceps ruficollis ruficollis. On 20th 

 March two arrived on Summerston Loch and one on Largo 

 Reservoir on 29th March. 



The Great Northern Diver, Colymbus immer. Last seen 

 in Largo Bay on 7th May, Galson on 28th May, and Hellyar Holm 

 on 23rd June. 



The Black-throated Diver, Colymbus arcticus. Arrived at 

 one of its breeding lochs in Inverness-shire on 7th April, while 

 on 7th June one apparently in full breeding dress, and another in 

 intermediate plumage, were seen in Largo Bay, and what appeared 

 to be this same intermediate bird was seen there also on 20th 

 and 28th July, 5th and 14th August. A single bird is noted at 

 Aberlady on 6th October. 



