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Reviews

01 July 1943 Comments Reviews Adventurers Fen. Written and illustrated by E, A. R. Ennion. (Methuen). IOS. 6d. D R . ENNION'S account of the vicissitudes of the Cambridge fen he has known and loved for forty years has much to attract and interest the naturalist and country lover. At f...

Notes

01 July 1943 Comments Notes NOTES FROM CUMBERLAND (Bombycilia garrulus).--Single bird near Cumdivock on December 27th, 1939. HEDGE-SPARROW (Prunella m. occidentalis).--During three weeks of frost in January 1941 as many as ten birds were noticed feeding quietly together amongst the...

Census of Swallows and House-Martins in the Sedbergh District, N.W. Yorkshire

01 July 1943 Comments Main paper T H E two squares (C.4 & C.5.) of the ordnance survey m a p (Sheet 20) which were covered by the two censuses contain for the most part a valley which is grassland, parts of which are now under cultivation. The valley is no lower than 400 ft. above sea-le...

Brood-Patches and the Physiology of incubation

01 July 1943 Comments Main paper THE present paper is prompted by Lt.-Col. B. H. Ryves's interesting communication on the r61es of male birds in relation to incubation (antea, pp. 10-16). It provides no new data, but merely aims at summarizing for the benefit of those interested some asc...

LETTERS: BARK-STRIPPING BY ROOKS; NUMBER OF EGGS LAID BY MISTLE-THRUSH; MANNER IN WHICH YOUNG GUILLEMOTS AND RAZORBILLS LEAVE THE NESTING LEDGES

01 June 1929 Comments ...

BIRD-NOTES FROM THE NORTH ATLANTIC

01 June 1929 Comments ...

NOTES

01 June 1929 Comments ...

THE "WING-CLAPPING" OF THE NIGHTJAR

01 June 1929 Comments ...

Notes

01 November 1928 Comments Notes IN the following cases during 1928, from west Sussex, the period of incubation has been calculated from the day on which the last egg was laid until the day or days of hatching. The fledging-period from the day or days of hatching until the day or days o...

The "Wing-Clapping" of the Nightjar

01 November 1928 Comments Main paper who has closely observed the Nightjar (Caprimulgus europceus) in flight, especially when it is indulging in nuptial display, must have noticed that occasionally it produces a sharp cracking sound, which is mechanical rather than vocal. This sound has been...

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Reviews

Notes

Census of Swallows and House-Martins in the Sedbergh District, N.W. Yorkshire

Brood-Patches and the Physiology of incubation

LETTERS: BARK-STRIPPING BY ROOKS; NUMBER OF EGGS LAID BY MISTLE-THRUSH; MANNER IN WHICH YOUNG GUILLEMOTS AND RAZORBILLS LEAVE THE NESTING LEDGES

BIRD-NOTES FROM THE NORTH ATLANTIC

NOTES

THE "WING-CLAPPING" OF THE NIGHTJAR

Notes

The "Wing-Clapping" of the Nightjar

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