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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...

Recovery of Marked Birds

01 November 1939 Comments Main paper Oundle (Northants), 12.1.39 [62 m. W.]. Great Ouse Estuary (Nor folk), 21.1.39 [25 m. W.]. Saltmills (Wexford), 5.2.39. Kalinin, West Russia, 15.9.38 [56Â°52'N., 36Â°E.]. Mouth of R. Welland (Lines), 24.12.38 [76 m. NW.].Saltash (Cornwall), 12.1.39 [9...

Birds seen on an autumn and a spring Atlantic Crossing

01 November 1939 Comments Main paper IN the autumn of 1938 and the spring of 1935 I made voyages across the Atlantic. The first one was in the "Europa" from Cherbourg to New York and the secondin the "Columbie" from Guadeloupe in the Leeward Isles to Plymouth. Several hours counting of birds...

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...

Letter

01 November 1939 Comments Letters SIRS,--The extension of the breeding range of the Lapwing {Vanellus vanellus) to Fokstumyren referred to in my previous letter (antea, p. 118) is certainly recent. Neither H. Tho. L. Schaanning in 1917 nor H. L. Ldvenskiold in 1929 and 1930 found the bird...

Reviews

01 November 1939 Comments Reviews Report of Marlborough College Natural History Society, 1938. T H E number of bird-observers this year is low, b u t we may hope t h a t this is only a temporary fluctuation. A very late Willow-Warbler is recorded for November oth, a Greenshank was seen in...

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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

Recovery of Marked Birds

Birds seen on an autumn and a spring Atlantic Crossing

Observation on Swallows and House-Martins at the Nest

Letter

Reviews

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