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Notes

01 January 1975 Comments Notes ... Read More

The "Invasion" type of bird migration

01 August 1957 Comments Main paper FOOD-SHORTAGE IS generally assumed to be involved in those emigrations that are called " i r r u p t i o n s " or " i n v a s i o n s " (these terms of course, being applied in the areas into which the birds come). W h a t it seemed most urgent to explain... Read More

Notes on Breeding of Black Redstarts in Kent

01 February 1941 Comments Main paper IN the summer of 1940 I was fortunate enough to be able to make some observations on two pairs of Black Redstarts (Phasnicurus o. gibraltariensis), which I found breeding in the Medway area in Kent. I watched the first pair ("A") as often as possible and ... Read More

Recovery of Marked Birds

01 January 1941 Comments Main paper Thornton - le - dale (Yorks), Bedlington (Northumb), 4.1.39, by R. M. Garnett. 7-3-4°Wetherby (Yorks), 30.1.2.39, by Preston (Lanes), --.2.40. Bootham School. Gt. Budworth (Ches), 12.11.38, Grantham (Lines), Spring, by A. W. Boyd. 194°Ditto 22.11.37. M... Read More