106 BIRD-LIFE IN A SOUTHERN COUNTY. 



(a rare bird in Devonshire), the Gadwall (also 

 rare in that county), the White-eyed Duck, the 

 Surf Scoter, Pallas's Sand Grouse, the Black- 

 winged Stilt, the Black-throated Diver, the Red- 

 necked Grebe, and the Sclavonian Grebe a 

 remarkable list truly when we bear in mind the 

 comparatively small area of the locality. Many 

 of these birds have occurred more than once on 

 the ley, a coincidence that in some cases seems 

 most extraordinary. We can well understand 

 how the attraction of a suitable resting-place 

 may exert a strong influence in such fairly 

 common visitors to our islands as Ospreys, 

 Bitterns, and Red-necked Grebes; but when we 

 come to such a species as the White-eyed Duck 

 or the White Stork, their repeated visits seem to 

 suggest something more than a mere coincidence. 

 Other naturalists have often remarked the same 

 thing. Mr. J. A. Harvie-Brown, for instance, 

 says how curious it is to find examples of 

 rare American and Eastern Palsearctic species 

 occurring so frequently on a line between the 

 Forth and the Clyde. Then we have the case 

 of the two Devonshire examples of the Rufous 

 Warbler occurring in the same district, but at 



