ABERDEEN UNIVERSITY BIRD-MIGRATION INQUIRY 339 



ABERDEEN UNIVERSITY BIRD-MIGRATION 

 INQUIRY: SECOND INTERIM REPORT (1912-14). 



By A. Landsborough Thomson, M.A., B.Sc, M.B.O.U. 



{Concluded from page 317.) 



Wren, Troglodytes troglodytes (L.). 



Only one bird of this species was recaptured after ringing. It 

 was liberated in Edinburgh in October 191 2, and retaken in the 

 same neighbourhood in the following June. 



Swallow, Chelidon rustica (L.). 



We have only a single record of the Swallow, viz., a bird ringed 

 as a nestling at Beaulieu, Hampshire, in September 191 2, and re- 

 captured at Ringwood, in the same county, in the following May. 



Barn Owl, Tyto alba (Scop.). 



Two birds of this species were recovered. They were ringed at 

 Lichfield, Staffordshire, in July 1913, and recaptured in the same 

 county in the following January and March respectively. 



Heron, Ardea ci/ierea, L. 



Two individuals of this species were recovered, both having been 

 ringed as nestlings. The details are as follows : — 



Case 449: ringed at Arrochar, Dumbartonshire, in June 1910, 



and recovered at Inversnaid, a few miles away, about 



Christmas Day, 191 2. 

 Case 450: ringed at Inverurie, Aberdeenshire, in May 191 2, 



and recaptured at Kintore, a few miles away, in the 



following January. 



Sheldrake, Tadonia tadorna (L.). 

 Two birds recovered, as follows : — 

 Case 447: ringed at Beaulieu, Hampshire, in July 1912; 



recovered at Saltash, Cornwall, in February 191 3. 

 Case 448: ringed at Beaulieu, Hampshire, in July 1912: 



recovered at Biisum, in Schleswig-Holstein, Germany, in 



August 1913. 

 Both these examples were ringed as ducklings. 



