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Further Notes on Territory in the Great Crested Grebe

01 August 1936 Comments Main paper THE writers (6) have previously published an account of territorial fighting in the Great Crested Grebe (Podiceps c. cristatus) on Frensham Ponds, Surrey, between 1932 and 1934. On Great Pond (69! acres) six to seven pairs nested close together with no ob...

Letter

01 May 1935 Comments Letters SIRS,--A sample count of Great Crested Grebes (Podiceps c. cristatus) is to be taken during the coming summer under the auspices of the British Trust for Ornithology. The main object of the count is to ascertain as far as possible what effect the past two...

An Index of Heron Population

01 April 1935 Comments Main paper WHEN the " British Birds Census of Heronries Report " was published in 1929 it was recommended that another complete census of British heronries should be taken not later than about 1940, if the full advantages of the 1928 Census were to be reaped. On the...

Letters

01 February 1935 Comments Letters SIRS,--May I say something on this vexed subject ? I speak of those territorial species whose young depend upon insects for food. Three sets of facts seem connected :-- (i) T h a t in a cold and wet breeding season we find infertile eggs, chicks dead in t...

Great Crested Grebes at the Tring Reservoirs

01 February 1935 Comments Main paper THE Tring Reservoirs in Hertfordshire lie at about 350 feet, in open country, N.W. of the Chiltern escarpment. They comprise three contiguous pools--Marsworth, Startop's End and Little Tring, with an aggregate area of about 90 acres ; and, some half a mil...

Letters

01 January 1935 Comments Letters SIRS,--1 read with interest Mr. Rickman's note regarding the nesting oi the Pintail in Dumbartonshire (antea, p, 206). For many years I have kept and bred Pintail at Tullichewan, which is only about two or three miles from the spot where Mr. Rickman found...

Territory in the Great Crested Grebe

01 December 1934 Comments Main paper I N their review of territory in bird life, D. and L. Lack (6) consider t h a t the claims for territory have been much exaggerated and that, especially, there is not adequate proof in any species t h a t territorial behaviour has food value. I t was furt...

Letters

01 September 1934 Comments Letters SIRS,--With reference to the extremely interesting article by Lieut.Col. and Mrs. B. H . Ryves on the breeding-habits of the Corn-Bunting as observed in north Cornwall (Vol. X X V I I I . , pp. 2-26) and Mr. John Walpole-Bond's detailed study of the Susse...

The Great Crested Grebe enquiry

01 May 1933 Comments Main paper ...

The Great Crested Grebe Enquiry (1931) Scotland

01 March 1933 Comments Main paper IN the Great Crested Grebe Enquiry (1931) we were unable to obtain such detailed information for Scotland as for the rest of Great Britain, and therefore in the main report on the Enquiry (antea, pp. 90-92) only a summary of the results was given. In gene...