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Reviews

01 January 1952 Comments Reviews A History of the Birds of Durham. By G. W. Temperley (Trans. Nat. Hist. Soc. of Northumberland, Durham and Newcastle-upon-Tyne (New Series) vol. ix, 1951). Price 15s. The County of Durham has in the past been overshadowed by its larger neighbour Northumbe...

Notes

01 January 1952 Comments Notes Effect of a snow-storm on breeding birds.--With reference to the article on this subject (antea, vol. xliv, pp. 57-59), Mr. C. E. BruceGardyne reports that in April, 1949, he had under observation nests of a Blackbird (Turdus merula) and a Song-Thrush (T...

The status of the Black-headed Gull colony at Ravenglass

01 January 1952 Comments Main paper there is an interesting association of several species of sea and shore birds breeding on the Drigg sandhills opposite Ravenglass in large numbers, the site has received little serious study and is generally known only for the size of the colony of Black-...

Head flagging in the Black-headed Gull; Its function and origin review

01 January 1952 Comments Main paper (Dept. of Zoology, Oxford University) STUDIES of the reproductive behaviour of various birds and fish have led to the conclusion that many elements of courtship, threat, and other types of display are " derived " movements. Some of these, such as the peck...

Studies of some species rarely photographed. XXXV. The Long-tailed Skua

01 January 1952 Comments Main paper Photographed by R. CHISLETT and P. O. SWANBERG. (Plates 1-8). THE present series of plates shows very well the handsome and striking plumage of the adult Long-tailed Skua (Stercorarius longicaudus). In addition to the great length and flexibility of the ...

The status of the Lesser Black-backed Gull

01 January 1952 Comments Main paper THE main purpose of the Enquiry, conducted with the help of the British Trust for Ornithology in the winters of 1949-50 and 1950-51, was to obtain definite information on the present winter status of this species in the British Isles and, if possible, to ...

Fair Isle bird observatory

01 February 1950 Comments Main paper Compiled by KENNETH WILLIAMSON (Director). The following notes have been selected from the Fair Isle Bird Observatory " Notes on Species " record-book as much for their importance in amplifying the information contained in The Handbook of British Birds a...

Marsh-Tit territories over six years

01 February 1950 Comments Main paper ...

Reviews

01 February 1950 Comments Reviews Yorkshire Naturalists' Union. Committee for Ornithology Reports for 1947 and 1948. Edited by Ralph Chislett. (Reprinted from The Naturalist, 1948, pp. 51-74, and 1949, 51-75.) T H E S E reports as usual contain much valuable material. Up to four Gannets w...

Notes

01 February 1950 Comments Notes DURING a visit to Thanet in the autumn of 1947, I was enabled, through the kindness of Mrs. Powell-Cotton, to examine the small collection of locally-taken bird-skins in the above museum. These were made readily available to me by the present Curator, Mr...

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Reviews

Notes

The status of the Black-headed Gull colony at Ravenglass

Head flagging in the Black-headed Gull; Its function and origin review

Studies of some species rarely photographed. XXXV. The Long-tailed Skua

The status of the Lesser Black-backed Gull

Fair Isle bird observatory

Marsh-Tit territories over six years

Reviews

Notes

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