192 



BRITISH BIRDS. 



[vol. VII. 



971; or 3.3 per cent. This, I think, must be considered 

 a very good percentage on so large a total, but of course 

 it must be understood that many of these recoveries 

 will teach us Httle or nothing, and the percentage of 

 really valuable recoveries is less than 3 per cent. On 

 the other hand~ this percentage is certain to increase 

 in the course of a few years. 



The proportion of recoveries of different species varies 

 from 100 per centum to nothing, and the following 

 details of a few of those spedes of which we have ringed 

 large numbers will perhaps be interesting : — 



Some Pjercentages of Recoveries. 



Species. 



Starling .^ 



Greenfinch 



Chaffinch 



Meadow-Pipit 



Pied Wagtail 



Willow- Warbler 



Song-Thrush 



Blackbird ... 



Redbreast ... 



Swallow . . . 



House-Martin 



Cuckoo 



Mallard . . . 



Lapwing . . . 



Curlew 



Snipe 



Woodcock 



Common Tern 



Black-headed Gull 



Lesser Black-backed Gull 



Number ' 

 Ringed 

 1910-12. 



lumber 



recovered 



to d3te. 



Percentages 

 of recoveries. 



3027 



211 



6.9 



775 



11 



1.4 



740 



15 



2.0 



254 



5 



1.9 



183 



7 



3.8 



562 



12 



2.1 



2128 



28 



1.3 



1457 



54 



3.7 



862 



30 



3.4 



1591 



17 



1.0 



318 



7 



2.2 



44 



5 



11.3 



222 



50 



22.5 



1266 



24 



1.8 



113 



6 



5.3 



79 



7 



8.8 



141 



15 



10.6 



2671 



66 



2.4 



7854 



209 



2.6 



333 



10 



3.3 



NUMBER OF BIRDS "RINGED." 

 Mb. H. W. Robinson (2255), Dr. H. J. Moon (1924), Messrs. F. W. 

 Smalley (1142). B. Pickard (777), W. E. Suggitt (759), Miss A. Pease 

 (680), Messrs. J. R. B. Masefield (553), A. Mayall (538), N. H. Joy 

 (457), J. Bartholomew (438), M. Portal (375), A. W. Boyd (315), 

 Mr. R. O. and Miss A. Blyth (273), Messrs. J. D. Patterson & W. B. 

 Irwin (213), Miss C. M. Acland (210), Messrs. T. C. Hobbs (208), 

 R. M. Barrington (200), E. W. Hendy (185), North London Natural 

 History Society (IMr. W. E. Glegg, Hon. Sec.) (171), Captain W. 



