REPORT ON SCOTTISH ORNITHOLOGY IN I914 193 



Single birds were procured at Lerwick and Fair Isle on 24th 

 October (i. 1915, 22 and 104). See p. 153. 



The Willow-warbler, Phylloscopus trochilus Irochilus. — On 

 the whole the arrival of this species was early this year, and it 

 was present in numbers at a date (19th April) which frequently 

 sees only the pioneers of the large immigrations. The first record 

 comes from Eoligarry (O.H.) on 2nd April, perhaps a bird that 

 would eventually go to Northern Europe to breed. On 12th 

 April the big arrival began, one being recorded that day near 

 Clarkston (Clyde) (2. vi. 90) ; on the 14th Willow-warblers appeared 

 at Dalgowan (Kirkcudbrightshire) and Murrayfield, and next day 

 at Lauder, Beith (2. vi. 90), Linwood Moss (I.e.) and Corsemalzie, 

 and were common at Lockerbie and Lochmaben (2. vi. 87). The 

 1 6th April saw numerous arrivals at both east and west coast 

 stations, and a stream of Willow-warblers poured into the country, 

 continuing steadily up to loth May. As early as 19th April 

 many places in Clyde had their full number of breeding birds 

 (2. vi. 90), but in other, bleaker localities the birds were much 

 later in putting in an appearance, as indeed might be expected. 

 Passage migrants are reported on Pentland Skerries on iSth April 

 and Lerwick next day, and from 4th to 19th May passages of 

 small numbers are noted at these two stations and Fair Isle. 

 From 30th April to 23rd May small numbers were steadily 

 passing the Isle of May, both in the daytime and at the lantern ; 

 the Bass records movement on 3rd and 6th May, Inchkeith lantern 

 on 7th and Little Ross lantern on 13th and 15th May; it is 

 difficult to place these birds, probably some, at least, of the later 

 Warblers were passage migrants. To this category undoubtedly 

 belong — a number at the Isle of May on loth and nth June, 

 one at Fair Isle on the latter date and one at Pentland Skerries 

 on 15th June. 



By the end of July and throughout August autumn movement 

 was apparent at many of our mainland stations. There were 

 numbers of Willow-warblers on Inchkeith on 9th August and a 

 rush there on the nth and 13th. Between the i6th and 19th 

 the Bass, Isle of May and Little Ross record a good deal of 

 movement, and from 28th to 30th August the two former stations 

 and the Mull of Galloway lantern were visited by some numbers ; 

 these data all point to a departure of our home birds. Passage 

 migration is first reported from Fair Isle on 17th August, and from 

 this time up to 17th September small, but pretty constant, passages 

 * of Willow-warblers are noted from our Northern Isles. Last seen 



43 Y 



