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Notes

01 November 1963 Comments Notes IT has long been known that, in the Common Crossbill (Loxia curvirostra) the mandibles cross indifferently on either side in different individuals. Recently, however, for a special purpose, I desired to ascertain whether or not individuals having the man...

Manx Ornithological Notes: 1912-13.

01 November 1963 Comments Main paper THE following notes continue the Manx record from the end of the period covered by the article in BRITISH BIRDS, Vol. V., pp. 300-4, to the end of the year 1913. There is still, probably, a lack of information about some of our smaller species, but the Ye...

A Student of Gulls.

01 November 1963 Comments Main paper THAT Ornithology sustained a heavy potential loss by the death of Ewen Kennedy, in 1909, a t the early age of twenty-eight, is evident by a perusal of his notes, put together in beautiful form* by the loving hand of his sister, Mrs. Maedonald. Beyond a ch...

REPORT ON THE "BRITISH BIRDS" CENSUS OF HERONRIES, 1928

01 November 1929 Comments ...

LETTERS: THE DIVING-HABITS OF THE LONG-TAILED DUCK; FLEDGING-PERIODS OF WOOD-PIGEON AND ROBIN; FULMARS BREEDING IN DURHAM

01 November 1929 Comments ...

NOTES

01 November 1929 Comments ...

Letters

01 April 1929 Comments Letters SIRS,--The observations conducted b y Messrs. Ingram and Salmon on the dives of the Long-tailed Duck (antea, p . 264) reopen a veryinteresting question, and one which, I think, is still some way from being satisfactorily answered. In estimating the averag...

Notes

01 April 1929 Comments Notes IN previous notes in British Birds on egg-daubing by the Jackdaw {Colceus m. spermologus) I can find no record of first and second layings of the same bird in the same season having been found bedaubed: so the following instance may be of interest. The f...

Report on the "British Birds" Census of Heronries, 1928. Part I

01 April 1929 Comments Main paper want of satisfactory data regarding the numbers of animals in relation to space and time is an obstacle of which biology is becoming acutely aware. It is clear that until accurate statistics are secured on a sufficient scale research must be restricted, i...

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Notes

Manx Ornithological Notes: 1912-13.

A Student of Gulls.

REPORT ON THE "BRITISH BIRDS" CENSUS OF HERONRIES, 1928

LETTERS: THE DIVING-HABITS OF THE LONG-TAILED DUCK; FLEDGING-PERIODS OF WOOD-PIGEON AND ROBIN; FULMARS BREEDING IN DURHAM

NOTES

Letters

Notes

Report on the "British Birds" Census of Heronries, 1928. Part I

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