ig8 THE SCOTTISH NATURALIST 



First seen Whalsay Skerries on 21st and Lerwick on 23rd May, 

 and arrivals are reported from these stations up to 27th May. By 

 1 5th August departures are recorded from Sule Skerry, and all had 

 left there by 18th and Whalsay Skerries by 20th August. Last 

 seen Swona on 4th September and North Ronaldshay two days 

 later. 



The Little Tern, Sterna albifrons albifrons. Three or four 

 are recorded from Luce Bay on 20th May, one near Dundee on 

 8th Tuly, and a few near Arbroath on 28th August. 



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



The Black-headed Gull, Larus ridibundus. Arrived at its 

 nesting loch, seven miles from Lauder, on 5th March ; great numbers 

 were seen near Largo on 12th March, and arrivals are noted at 

 Corrour on 15th March and Lerwick on 2nd April. On 5th and 

 13th May this species is recorded from the Isle of May. 



By 9th fuly enormous numbers of old and young birds had 

 returned to Largo Bay, and next day Black-headed and Herring 

 Gulls were thick in the flooded fields between Largo and Edinburgh. 

 On 31st December two appeared on Eilean Mor, one of the 

 Flannans (1. 1917, 34)- 



The Common Gull, Larus can us canus. An increase was 

 observed on Holy Island on 13th February, arrived to breed at 

 Hellyar Holm on 1st March, and the last party of adults were seen 

 at Dundee on 21st April. On 15th October several were seen 

 within the city boundaries of Glasgow, driven in by a gale. 



The Lesser Black-backed Gull, Larus fuscus.On 22nd 

 February one was seen on Luce Sands, and arrivals, doubtless of 

 our L.f. britannicus, are recorded from Beith on 15th March and 

 Possil Marsh on 22nd March (2. viii. 59), and thereafter from many 

 stations up to the end of April. On 9th July about a dozen L. f. 

 britannicus and one L.f.fuscus were seen in Largo Bay (1. 1916, 265), 

 and next day there were a good many of this species in the flooded 

 fields between Largo and Edinburgh. On 9th November a Lesser 

 Black-backed Gull "with a black back," in all probability Z. /. 

 fuscus, is recorded from Corsemalzie. 



The Glaucous Gull, Larus glaucus. Is recorded pretty 

 regularly from our Northern Isles and the Outer Hebrides, up to 

 6th March. One was seen at Whalsay Skerries on 28th July, two 

 at North Ronaldshay on 16th October, and thereafter there are 

 further records up to the end of the year. 



