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Erythrism in the Eggs of British Birds.

01 September 1963 Comments Main paper ALTHOUGH many scattered notes on this subject may be found in the various ornithological journals, very little has hitherto been done to collect these separate records; and beyond a short note by Adolf Kricheldorff in the Zeitschrift fur Oologie, XIII., ...

Notes

01 May 1963 Comments Notes FOE some years now I have been paying particular attention to the nestlings of common birds. It is of course now known to all ornithologists that the parents keep the nest clean (as a general rule) by carrying away the excrement, and often by swallowing ...

Letters

01 February 1961 Comments Letters The Len Howard Appeal Sirs--All readers of Miss Len Howard's books Birds as Individuals and Living with Birds have been distressed to learn that her life's work is threatened by building on the land next to her garden sanctuary. For twenty-one years Miss ...

Letters

01 January 1955 Comments Letters " A N T I N G " BY B I R D S S I R S , -- T h e announcement by the Editors of British Birds (antea, vol. xlvii, p p . 312-313), based on the work of H . Poulsen, that " a n t i n g " by birds is "quite a u t o m a t i c " and is merely performed to rub o...

Letters

01 March 1952 Comments Letters SIRS,--We are hoping to collate information about visible migration over, and on the shores of, the Mediterranean. Very little has been published on the subject and no doubt a good many unpublished records, especially those made on voyages, are in existen...

Notes

01 June 1949 Comments Notes ...

Notes

01 September 1947 Comments Notes ON April 22nd, 1947, near Muthill, Perthshire, I caught a glimpse, from a car, of a commotion in some rough grassland near the edge of a wood. I stopped the car and my wife and I then saw that a pair of Carrion Crows (Corvus c. corone) was attacking some...

Observation on Swallows and House-Martins at the Nest

01 November 1939 Comments Main paper RECENT studies of the parental care by African Hinindinidae and Swifts have suggested that, in addition to specific differences in the share taken by the sexes, certain rhythms of the behaviour may be specific, especially the favourite duration of the in...

Notes

01 October 1939 Comments Notes FOR some years a pair of Grey Wagtails (Motacilla c. cinerea) have nested in and round a house in Ireland choosing as sites the window ledges of upstairs windows or the thick stems of a Virginian creeper, the nest being either built along a branch or in ...

Observation on Sand-Martins at the Nest

01 September 1939 Comments Main paper in the Sand-Martin (Riparia r. riparia) is said to be " by both sexes but positive data scanty" (F. C. R. Jourdain, 1938)* ; males had been found on eggs by Stoner {1936), but the nature of their participation in the brooding was not ascertained. We had a...

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Erythrism in the Eggs of British Birds.

Notes

Letters

Letters

Letters

Notes

Notes

Observation on Swallows and House-Martins at the Nest

Notes

Observation on Sand-Martins at the Nest

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