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Letter

01 September 1946 Comments Letters SIRS,--In t h e course of a study of t h e breeding population of Oystercatchers (Hmmatopus ostralegms occidenialis) on the islands of Skomer and Skokholm this year we have ringed a number of chicks with coloured rings. Though the main purpose of this has...

Notes

01 September 1946 Comments Notes THE habit of sun-bathing by passerine birds.is discussed in a note by T. S. Williams (antea, p. 152). As indicated in the Editorial comment thereto this is probably commoner than at first sight appears to be the case. To the list of species given I can a...

Studies of some species rarely photographed. VI. The Griffon Vulture

01 September 1946 Comments Main paper (Plates 31-35). THE Griffon Vulture (Gyps f.fulvus), of which species a single immature example was captured near Cork in 1843 and others have been reliably reported as seen on two occasions in England, has in recent years become almost, if not quite, ext...

Some further Notes from the North Atlantic

01 September 1946 Comments Main paper (with chart). SINCE the publication in 1928 of the writer's " Bird Notes from the North Atlantic " (Brit. Birds, Vol. xxii, pp. 122-133) and of "An Ornithological Transect of the North Atlantic" (Brit. Birds, Vol. xxiv, pp. 266-274), much has been done to...

Do juvenile birds survive less than adults

01 September 1946 Comments Main paper FARNER (1945} has estimated the age and survival of the American Robin (Turdus migratorius) from ringing (banding) returns, by the method used by the present writer for various British species (Lack, 1943). Farner's conclusions agree closely with mine exc...

Notes

01 July 1941 Comments Notes ON May 18th, 1924, my father and I found the nest of a Siskin (Carduelis spinus) at Acharacle, Argyll. It was about twenty feet up on the spreading bough of an exotic fir (species not recorded) in a large garden. When my father climbed to it, both birds ...

Report on the effect of the severe winter of 1939-40 on bird life in the area within 20 miles of London

01 July 1941 Comments Main paper THIS report is intended to supplement the " Report on the effect of the severe winter of 1939-40 on bird-life in the British Isles " which has already appeared in this journal (antea, Vol. xxxiv, pp. 118, 142), and details which were given there, such as ...

Intelligence tests with Tits

01 July 1941 Comments Main paper the idea of testing the ability of birds to solve problems, I carried out some experiments in February, 1941, which seemed to need a definite amount of intelligence for their solution. My subjects were a pair of Blue Tits (Parus c. obscurus), and a pair o...

The Diving Habits of Ducks and Grebes

01 July 1941 Comments Main paper an opportunity has occurred during the last few years we have timed the dives of two or more species of diving birds feeding together at the same place and working at the same depths at Lisvane Reservoir, near Cardiff. Comparing the results thus obtained ...

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Letter

Notes

Studies of some species rarely photographed. VI. The Griffon Vulture

Some further Notes from the North Atlantic

Do juvenile birds survive less than adults

Notes

Report on the effect of the severe winter of 1939-40 on bird life in the area within 20 miles of London

Intelligence tests with Tits

The Diving Habits of Ducks and Grebes

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