136 



BRITISH BIRDS. 



fvOL. VI. 



injure or hamper the birds. His routine as regards marked 

 birds reported from abroad is then outlined : he prefers, we 

 notice, to receive an im'pression of the ring, and to leave 

 the ring itself (or the stuffed specimen with ring) in the foreign 

 country as a proof that the bird was found theie. 



His lists of his own marked birds and of the recoveries 

 are instructive : Up to 1st March, 1912, he had marked 

 3,540 birds of 24 different species (15 species had less than 

 20 each, and 13 of these 6 or less). Out of these 69 had been 

 recovered at home (i.e. Denmark) and 154 abroad (the 

 former figure exclusive of the many Starlings i-ecovered in 

 and around Viborg). Some of the contrasts are very 

 striking, e.g. : — 



Species. 



Starling {Sturnns vulgaris) 

 Raven (Corvus corax). . 

 Buzzard {Buteo buteo) 

 Goshawk (Acciptter gentilis) 

 Stork (Giconia ciconia) 

 Heron (Ardea cinerea) 

 Teal (Anas crecca) 

 Wigeon (Anas penelope) 

 Pintail (Dafda acuta) 

 Common Gull {Larus canus). 

 Black - headed Gull {Larus 

 ridibundus) 



62 



Thus we have every gradation between Teal with about 

 22 per cent, of birds marked recovered abroad, and Starlings 

 with about 0.3 per cent, (foreign recovei-ies only). Again, 

 the Goshawk has about 77 per cent, of Danish and per cent, 

 of foreign recoveries, as compared to the Teal with about 

 2 per cent, of Danish and 22 per cent, of foreign recoveries. 



The section on results is very brief, these having formed 

 the subject of separate papers, many of which have already 

 been noticed in these pages (for Teal, c/. Vol. III., p. 252 ; 

 for Stork, c/. Vol. IV., pp. 357-60 ; and for Heron, c/. 

 Vol. v., p. 77). A.L.T. 



