CH. IX. BIRDS. 141 



just hatched ; its nest, however, has not been 

 found. 



138. The Black -throated Diver is gradually 

 diminishing in number, but still breeds in the 

 lakes of Assynt, Loch Laighal, and elsewhere. 



139. The Red -throated Diver breeds also in 

 the northern parts of the county. 



140. The Foolish Guillemot breeds in countless 

 numbers on the island of Handa and elsewhere. 



141. The Black Guillemot is much rarer, but I 

 saw it near the same island in June. 



142. The Puffin is also numerous in Handa, 

 etc. ; as is 



143. The Razor-bill, 



144. The Little Auk is a winter and occasional 

 visitor. 



145. The Cormorant, and 



146. The Shag, breed in many different places 

 along the coast. I saw great numbers of them 

 about Whiten Head, Handa, etc. etc. 



147. The Gannet breeds on some rocks off the 

 northern coasts. 



Of Terns I have seen the following varieties : — 



148. The Roseate Tern. 



149. The Common Tern. 



150. The Arctic Tern. 



151. The Lesser Tern; 



and no doubt there are many other varieties. 



