REPORT ON SCOTTISH ORNITHOLOGY IN I916 179 



1 3/ 1 4th November enormous numbers were at the Little Ross 

 lantern, and from this date up to 21st November some movement is 

 noted at this station, Cullen, Pladda, Swona, and the Isle of May. 

 A weather movement is recorded from Pladda, Little Ross, and 

 Cullen from iSth to 26th December. 



The Ring-ouzel, Turdus torquatus torquatus. Single birds 

 are reported at the Isle of May on 20th, 21st, 22nd, and 26th April, 

 at Cockburn on 22nd April, at the Rhinns of Islay lantern at 2 a.m. 

 on 23rd April, and at the Killantringan lantern at 10 p.m. on 24th 

 April, on which date a pair arrived at Corrour. From 5 th to 10th 

 May Ring-ouzels were on passage on the Isle of May. From 27th 

 to 29th September several were on the Isle of May, one at the 

 Rhinns of Islay lantern at 9 p.m. on the former date, and passage 

 migrants at Whalsay Skerries (L.), Swona, Sule Skerry (L.), and 

 Whiteness (Shetland) on various dates between 27th September and 

 26th October. Several are reported at the Little Ross lantern on 

 i/2nd, 2/3rd, and 30th October, and single birds at the Isle of 

 May on 19th, 27th, and 30th October and 2nd November. 



The Blackbird, Turdus merula merula. Four Blackbirds were 

 at the Killantringan lantern at 6 a.m. on 2nd January, and from 

 29th January to 5th February a considerable movement is recorded 

 from the Little Ross and Killantringan lanterns and the Isle of 

 May ; where the sex is noted all were males. Movements of Black- 

 birds are noted from Holy Island, the Isle of May, Bell Rock, 

 Rhinns of Islay (L.), and Butt of Lewis between 18th March and 

 2nd April. From 19th to 27th April there are notes of emigrating 

 Blackbirds from many stations in our Northern Isles, and several 

 birds of this species (probably passage migrants) visited the 

 Killantringan lantern on 24th and 26th April and 2nd May. From 

 27th September to 4th November steady arrivals of immigrants 

 are recorded from the stations in our Northern Isles, the largest 

 numbers noted being between 19th and 23rd October, and birds 

 at the Isle of May were probably also overseas immigrants. Black- 

 birds were at the Pladda lantern on 2nd and 3rd October, and 

 from 20th October to 5th November and again from 13th to 20th 

 November great movements of this species are reported from 

 southern stations, chiefly Little Ross (L.), Rhinns of Islay (L.) and 

 Pladda (and L.), but other stations also participated. The first- 

 named station has noted the sexes in some cases: on 22/231^ 

 October they were all young males, on the 26/2 7th and 28th they 

 were all females, and on 29/3oth October all were adult males; 

 later on, the sexes are not stated. Blackbirds are reported at 



