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Letters

01 May 1963 Comments Letters S I R S , -- I n t h e article on Incubation, b y Mr, Erie B. Dunlop (antea, p. 109), t h e writer s a y s : " Another bird which rears few young compared to t h e number of eggs it lays is t h e Great-erested Grebe. Four or five eggs are very frequently ...

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 ...

The Sequence of Plumages of the Rook, With Special Reference to the Moult of the " Face."

01 May 1963 Comments Main paper I T has always been a disputed point as to whether the Rook (Oorvus f. frugihgus) gets its bare " face " by means of abrasion of the feathers or by a moult. Most ornithologists have favoured the moult theory or have regarded it as a " natural peculiarity....

Reviews

01 March 1961 Comments Reviews Atlas of European Birds. By K. H . Voous. N e l s o n , London, i960. 284 pages; 419 maps and 355 photographs. 70s. One of the post-war developments in ornithology has been the attention given to bird distribution. There has been a growing realisation of ...

Notes

01 March 1961 Comments Notes Beetles in the plumage of birds.--On 25 th May 1959 I picked up a freshly dead Swift (Apus apus) on the sloping concrete bank of Hilfield Park Reservoir, Hertfordshire. On examining the bird I discovered a single beetle of the species Haltka ohracearighti...

A survey of moulting Shelduck on Knechtsand

01 March 1961 Comments Main paper sand-banks which lies 8.1 nautical miles from the German mainland between Bremerhaven and Cuxhaven. It extends from 8Â°i8'E to 8Â°29'i5"E and from 5 3 V ' i 8 " N to 5 3Â°46'i5"N. Robins Balje is a natural boundary on the south-west side, while the ...

Warbler fluctuations in Oak Woodland in the Severn Valley

01 March 1961 Comments Main paper T w o P R E V I O U S P A P E R S of mine in British Birds (1935, 1950) gave population statistics for the Nightingale (Luscinia megarhynchos) and four species of warbler--Willow Warbler (Pbylloscopus trnchilus), Chiffchaff (PL collybitd), Garden Warbler ...

The contamination of birds with pollen and other substances

01 March 1961 Comments Main paper A s A RESULTof an appeal in a paper by Ash (195 9), further specimens of polleniferous contaminants, some containing other substances, were removed from the heads of migrant birds in i960. The most notable contribution was made by P.H.J, in the Camargue, ...

Reviews

01 May 1938 Comments Reviews De Nederlandsche Vogels. Bewerkt door Dr. C. Eykman, P . A, Hens, Jhr Dr. Ir F . C. van H e u m , Dr. C. G. B. t e n Kate, J. G. van Marie, G. van der Meer, M. J. Tekke en Tsj. Gs. de Vries. Eerste Deel. (Wageningen : Boek en Handelsdrukkerij). This is th...

Notes

01 May 1938 Comments Notes ON March 3rd, 1938, at Cambridge sewage farm we observed a Pipit which we were able to identify as a Water-Pipit (Anthus s. spinoletta). It was first seen feeding amongst other birds (Meadow-Pipits, Pied Wagtails and waders) on one of the tanks and its d...

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Letters

Notes

The Sequence of Plumages of the Rook, With Special Reference to the Moult of the " Face."

Reviews

Notes

A survey of moulting Shelduck on Knechtsand

Warbler fluctuations in Oak Woodland in the Severn Valley

The contamination of birds with pollen and other substances

Reviews

Notes

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