AYES. 



23 



Smew, Mergus alhellus ; rare : a few instances of its occurrence 

 on record. 



Red-breasted Merganser, M. serrator ; generally a winter visitor. 

 Goosander, M. merganser ; sometimes observed in Mount' s-bay, 



but only in winter plumage : the adult male has the breast 



of a beautiful glowing maroon buif colour. 

 Great Crested Grebe, Podiceps cr (status ; not uncommon in winter 



on marshes. 



Red-necked Grebe, P. rubricollis ; quite as often occurring as the 

 last-named species, — frequenting the same localities. 



Horned Grebe, P. cornutus ; specimens not in adult pluma 

 occasionally obtained from the Land's-end district. 



Eared Grebe, P. auritus ; specimens not unfrequently obtained, 

 but generally in immature plumage : a specimen in adult 

 summer plumage obtained some years since from St. Just 

 pool, Falmouth harbour, and now in the Truro museum. 



Little Grebe, P. minor ; the most commonly distributed of all the 

 grebes in the Land's-end district. In summer plumage the 

 neck is dark-red with the chin black. 



Great Northern Diver, Colymbus glacialis ; found in more or less 

 numbers every year, generally in immature plumage, and in 

 the autumnal months ; though of late years some specimens 

 in the adult state have been killed. 



Black-throated Diver, C. arcticus ; more rare than the former 

 species, sometimes seen in Mount' s-bay. 



Red-throated Diver, C. septentrionalis ; common in the autumnal 

 and winter months in Mount's Bay, and at this season 

 invariably found without the red throat, and in the plumage 

 represented by Bewick as the "speckled diver." 



Common Guillimot, TJria troile ; frequently seen singly, and in 

 small parties, in Mount' s-bay, and around our coast. 



Ringed Guillimot, TJ. lacrymans ; the specific distinction of this 

 bird from the common guillimot is doubted. 



Black Guillimot, U. grylle ; rare on the western coasts of Corn- 

 wall : one example, in intermediate plumage, taken some 

 years since in Mount' s-bay. 



Little Auk, Mergulus melanoleiccos ; not frequently met with on 

 our coasts. 



