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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....

Notes

01 April 1943 Comments Notes MARTINSON of Foresters Lodge, Wolsingham, in the Wear valley, rcports that from January ioth to 28th, 1943, he had under Observation five Two-barred Crossbills (Loxia l. bifasciala). Flocks of the Common Crossbill (Loxia c. curvirostra) have been present...

Bird Notes from Lincolnshire, 1934-1942

01 April 1943 Comments Main paper THE following records from Lincolnshire over the past nine years it is hoped may provide some interest in that as the period concerned is of some length, some idea of the frequency of the occurrences of some of the species mentioned may be furnished. Ther...

Report of the Bird-Ringing Committee

01 April 1943 Comments Main paper THIS is the sixth report* issued on behalf of the Bird-Ringing Committee of the British Trust for Ornithology, continuing the earlier sequence of reports by H. F. Witherby published from 1910 onwards under the title " The British Birds Marking Scheme." Ac...

The index of Heron Population, 1942

01 April 1943 Comments Main paper THE number of heronries concerning which reports for 1942 have been received at the Edward Grey Institute was only 90, of which only 2 were in Scotland, only 4 in Wales and none in south-east England. Major A. W. Boyd again collected statistics for nearly...

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Letters

Notes

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

Notes

Bird Notes from Lincolnshire, 1934-1942

Report of the Bird-Ringing Committee

The index of Heron Population, 1942

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