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Letters

01 September 1977 Comments Letters ...

Notes

01 July 1940 Comments Notes AT a rookery in Surrey, on March 30th, 1940, at 12.5 p.m., Rooks (Corvus f. frugilegus) were seen to change over at the nest. One bird--obviously a male--flew in and standing on the nest edge fed his plainly visible mate. During the meal wing-action by t...

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...

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...

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...

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Letters

Notes

Further Notes on Territory in the Great Crested Grebe

Letters

Territory in the Great Crested Grebe

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