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Report of the bird-ringing committee

01 September 1947 Comments Main paper THIS is the tenth report f issued on behalf of the Bird-Ringing Committee of the British Trust for Ornithology, continuing the earlier sequence published under the title " The British Birds Marking Scheme."The composition of the Committee remains the same...

Report on the Black Redstart inquiry for 1946

01 September 1947 Comments Main paper the co-operation of 64 observers, it has been possible to provide evidence of the breeding of at least ten pairs of Black Redstarts (Phcenicurus ochrurus gibraltariensis) in England in 1946. A further 13 pairs or singing males occupied territories, but wi...

Notes on Welsh Choughs

01 September 1947 Comments Main paper As THE Chough (Pyrrhocorax p. pyrrhocorax) is one of our lesserknown species, the following observations might be of interest as furnishing corroboration of the excellent account of this species given in The Handbook. The notes are the result of observati...

Some cases of abnormal flight of birds

01 September 1947 Comments Main paper instances of abnormal flight in birds, which I have observed, open up an interesting subject for speculation. The collection of further data may throw light upon the reasons. Probably in many cases the effect of air currents, pockets and lifts may be assu...

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Report of the bird-ringing committee

Report on the Black Redstart inquiry for 1946

Notes on Welsh Choughs

Some cases of abnormal flight of birds

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