REPORT ON SCOTTISH ORNITHOLOGY IN I915 193 



there are notes of small numbers, probably passage migrants, from 

 these two stations, Pentland Skerries and Hoy High. 



A few were about Fair Isle on 6th July, and Lerwick on nth 

 July, and two at Skerryvore on ist August. From 26th August 

 to the end of September there are many notes of departure. 

 Last seen Dundee on 19th September, Beith on 24th, and Largo 

 on 28th September, Dunkeld on 4th October, and Livergowrie 

 on 31st October. 



The Sanu-martin, Riparia riparia riparia. — Was very late 

 in appearing in 191 5. It is recorded at Duns on 13th April, 

 Soulseat (Inch) next day, Duddingston on i6th April, New 

 Galloway on i8th, and Beith on 20th April. After this, arrivals 

 are recorded constantly up to 4th May, by which time our breeding 

 birds were well distributed. A Sand-martin visited Fair Isle on 

 9th June. Last seen Largo on 18th August, Soulseat on 3rd 

 September, and Invergowrie on 19th September. 



The Alpine Swift, Apus nielba iiielba. — A bird of this species 

 is recorded as having been seen at Whithorn, Wigtownshire, on 

 30th July (i. 1915, 308). See p. 151. 



The Swift, Apus apus apus. — Was rather late in appearing 

 in 1915. On I St May it is recorded from Invergowrie and 

 Summerston (Clyde), and next day from Melrose, Williamwood, 

 Allander Toll, Bardowie, Johnstone, and Dundee. After this 

 and up to 14th May many returns to summer haunts are noted. 

 On 2ist May several were at the Butt of Lewis, and a "great 

 flight" at Little Ross on 7th June; "Swifts were very numerous 

 and remained five or six hours." On 8th, 9th, and 15th June 

 there were a good many at the Butt of Lewis, and two at the 

 Isle of May on i8th and 19th June. By 25th July the last of 

 the local breeding birds had left Johnstone ; " they have stayed 

 less than three months," and during August there are constant 

 notes of departure from our mainland stations. Last seen Largo 

 on 1 2th August, Loch Elrig (Mochrum) on i6th, Beith on 20th, 

 and Dundee on 29th August. Notes of Swifts, probably passage 

 migrants, come from Swona and Sule Skerry on 20th July, Fair 

 Isle on 28th July and 3rd and 9th August, Pentland Skerries on 

 loth August, and the Butt of Lewis on loth and nth August, 

 while the last for the season is reported from Hellyar Holm 

 on 22nd September. 



The Nightjar, Caprimulgus europaus europceus.- — Is recorded 

 from Thornhill on loth May, Soulseat (Inch) on 14th, and Holy 

 55 AND 56 Y 



