1920.] Ornithology of the Island of Texel. 387 



Gkeen Sandpiper. 



As above, and odd birds, probably of this species, seen 

 25 September and 6 October. 



Redshank. 



Very common everywhere at the end of August in the 

 polders, on the " puzzle-weed " and in the adjoining ditches 

 and channels. Two pairs still had young unable to fly. 

 Noted each day in September, with an increase on the 22nd, 

 but the numbers by the early days of October had much 

 diminished. " Breeds commonly " (all authors). ''Breeds 

 on all the Dutch Friesian group " (L.J.) . 



Dusky Redshank. 



Not common, but about half a dozen seen each day at the 

 end of August, always singly. A very distinctive bird, its 

 noticeably longer bill and legs at once attract attention ; 

 whilst its double-noted whistle, like that of the Ringed 

 Plover, though louder and clearer, and the absence of the 

 white wing-bar, further help to differentiate it from its 

 commoner relative. One adult in black breedino-dress was 

 seen on 31 August. In September and October odd birds 

 were observed up to 10 October, but no marked migration 

 was noted. Frequented the same sort of places on the shore 

 as the Redshank, but seldom seen on the polders. " Small 

 flock seen April 1914" (V.). 



Greenshank. 



In August it was fairly numerous, generally singly or in 

 twos and threes, but I once saw twelve in a flock. They 

 frequented the ditches of the " puzzle-weed," muddy pools, 

 and sides of the channels, where they obtained small fry. 

 Noted in September on most days, with an increase in 

 numbers on the 18th, but by the end of the month and 

 up to 10 October only odd birds remained. " A few 

 birds seen in the spring" (V.). 



Bar-tailed Godwit. 



Mr. Vaughan remarks that " no better station can be 

 found than this island for watching the migration of the 



SIR. XI. — VOL. II. 2 D 



