REPORT ON SCOTTISH ORNITHOLOGY IN 1910 149 



May on 3rd September. Three pied male Black Grouse were 

 shot on the Loch Inch Moors in the autumn of 1910, while 

 a white Grouse, a female, was shot at Bamff, near Alyth, on 

 i 3th August (1.1911.56). The only other albinistic variety 

 recorded is a white Ringed Plover, obtained near Kirkwall 

 (Orkney) on 2Oth August ("Field," September 17, 1910). 



On 2Oth September an adult male Black Grouse was shot 

 at Glen Trool (Wigtown), which had partly assumed female 

 plumage. The generative organs appeared to be perfectly 

 healthy and similar to those of a normal male (" Field," 

 March 11, 1911). A few notes on the assumption of 

 summer plumage have been sent. On 29th January Black- 

 headed Gulls at Kirkcaldy were assuming their black hoods, 

 while by iith February two were seen at Saltoun in full 

 summer dress. By 26th February Cormorants were seen in 

 nuptial plumage, and next day a Guillemot in full summer 

 plumage was found lying dead in Largo Bay. On the other 

 hand, on I3th May in Loch Linnhe, and on 9th June in the 

 Sound of Sleat, where many Guillemots and Razorbills were 

 seen, " quite a number " were still in winter plumage ; and on 

 1 6th June a Common Tern, in winter plumage with a white 

 forehead, was swooping at intruders on an East Fife ternery. 



(To be continued.} 



THE AQUATIC COLEOPTERA OF THE 

 NORTH EBUDES. 



By FRANK BALFOUR-BROWNE, M.A. (OXON), F.R.S.E., F.Z.S. 



THE group of islands including Skye, Rhum or Rum, 

 Canna, Eigg, and Muck were named the North Ebudes, by 

 the late H. C. Watson, in the " Cybele Britannica." So far, 

 very few Coleopterists seem to have visited any of these 

 islands, and the records of Water-beetles apparently include 

 only six species of Hydradephaga and none of Gyrinidae or 

 Hydrophilidae, one of the records being for Rhum and the 

 other five for Skye. 



