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Letters

01 October 1950 Comments Letters --I am engaged in investigating t h e ringing records of Blue Tits. Amongst the known causes of death it is astonishing to find that the mousetrap is a principal one. I t may be necessary to place r a t and mouse traps in gardens, b u t I suggest that the...

Notes

01 October 1950 Comments Notes WITH reference to the note (antea, p. 54) on this topic, in June, 1949, an Arctic Tern (Sterna macrura) made repeated stoops at my companion, Dr. H. K. Whitehouse, while he was standing by the bank of the river in Hvalfjordur a few yards from our camp in...

Methods of determining breeding-cliff populations of Guillemots and Razorbills

01 October 1950 Comments Main paper A CENSUS of cliff-nesting seabirds is usually carried out by making a careful count of every occupied nest, thus giving the number of breeding pairs. This is the most accurate method and can be carried out comparatively easily in the case of species that ...

Studies of some species rarely photographed: XXVII. Temminck's Stint, The Semipalmated Sandpiper, The Little Stint

01 October 1950 Comments Main paper Photographed by C. G. DES FORGES and j . E. SLUITERS. (Plates 50-59)IN the present instalment of this series we illustrate the two European stints and one of the American species on the British List. Temminck's Stint (Calidris temminckii) has a wide bree...

Recovery of marked birds

01 October 1950 Comments Main paper Fair Isle Bird Obs., 8.6.49. Noness, Shetland, 25.10.49. Rogart (Suth.), 26.5.49, D y Bushmills (Antrim), 3.12.49. R. Carrick. St. Osyth (Essex), 17.5.49, Boston (Lines.), 13.11.49 by R. W. Arthur. [95 m. N.N.W.].Chipping (Lanes.), 23.3.50 [170 m. S.]. Ly...

Notes

01 May 1943 Comments Notes 1942 I had excellent opportunities of observing the birds which frequent the southern shores of Ayr Bay, between the mouth of the river Doon and the Heads of Ayr. As a result I have been able to add three new birds to the Ayrshire list, and I include one...

Recovery of Marked Birds

01 May 1943 Comments Main paper Longridge (Lancs), 21.3.42. Hartshorne (Derby) 25.4.42. OkL Buckenham (Norfolk), 5-M*Meare (Som), 25.1.42. Oskarstrom (Hailand), Sweden, 28.3.42. Ely (Cambs), 13.11.42. St. Biazey (Comwall), i r . 1.42. Farnborough (Hants), 23.3.42. Nethera von (Wilts) Ro...

The Aerodynamics of the Drumming of the Common Snipe

01 May 1943 Comments Main paper has been written concerning the drumming of the Common Snipe (Capella g, gaUittago), and the fact that it is caused by the Vibration of the outer pair of tail-feathers, accompanied by the quivering of the wings, has long been well known; the aerodynamics ...

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Letters

Notes

Methods of determining breeding-cliff populations of Guillemots and Razorbills

Studies of some species rarely photographed: XXVII. Temminck's Stint, The Semipalmated Sandpiper, The Little Stint

Recovery of marked birds

Notes

Recovery of Marked Birds

The Aerodynamics of the Drumming of the Common Snipe

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