1921.] Bird-Migration hy the Marling Method. 519 



5 August of the same year. One (Case 921) marked as a 

 chick in NorthumberLand on 18 June, 1912, was found dead 

 in the same district on G May, 1920. 



OTSTERCATCHEE (Hmrnatopiis ostmlegus Linn.). 



One (Case 856) marked as a chick in Aberdeensliiro on 

 11 June, 1910, was recovered in Cheshire on 3 December, 

 1915. Two (Cases 413 and 414) marked as cliicks 

 in Aberdeenshire in June 1912, were shot in Irehand in 

 the same autumn, one at Broadhaven Lighthouse, County 

 Mayo, on 22 August, and the other at Blackrcck, (^ounty 

 Cork, in October. A fourth (Case 904) was marked as 

 a chick in Sutherland on 29 May, 1913, and recovered 

 in the neighbouring county of Koss about 13 August of 

 the same year. 



An autumn migration of Oystercatchers from Scotland 

 to Ireland was already known to occur, but whether partly 

 of native birds or wholly of winter visitors was not 

 established. The early dates in two cases are of interest. 



SNIPE {Gallinago gallinago Linn.). 



One (Case 415) marked as a chick in (/'ounty Fermanagh, 

 Ireland, on 12 June, 1913, was shot in County Longford 

 on G October of t)ie same year. 



COMMON TEEN {Sterna hirundo Linn.). 

 One (Case 392) marked as a chick on the Aberdeenshire 

 coast on 31 July, 1912, was picked up in the Firth of Forth 

 about 7 September of the same year. Five others marked 

 as chicks in various parts of Scotland were recovered near 

 places where they were marked after intervals of less than 

 two months (two on 21 August, and the others even earlier). 



LITTLE TEEN {Sterna mimda Linn.). 



One (Case 678) marked as a chick on the Yorkshire coast 

 on 10 July, 1914, was recovered in Portugal in September 

 of the same year. 



SEB. XI. — VOL. III. 2 M 



