Report on bird-ringing for 1952

01 August 1953
Comments Main paper This is the sixteenth reportf issued on behalf of the Committee, continuing the earlier sequence under the title " The British Birds Marking Scheme." It combines a report on the progress of ringing during 1952, with a selected list of recent recovery reco...
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Report on bird ringing for 1951

01 August 1952
Comments Main paper Bird-Ringing Committee, British Trust for Ornithology. This is the fifteenth r e p o r t ! issued on behalf of the Committee, continuing; the earlier sequence under the title " T h e British Birds Marking S c h e m e . " It is in the form instituted last ...
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Nest-Sanitation

01 May 1941
Comments Main paper Faeces carried; no data for first few days ; at a late stage young defaecate from the opening ; if deposited on " doorstep " they are carried; if they fall clear they are left, even if conspicuous (B.H.R., R.G.A., A.H.M.C). [Voided at entrance of nest and...
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