Letters

01 January 1964 Comments Letters Disturbance of breeding and resting birds by bird-watchers Sirs,--Changes in land use involving reclamation for agriculture and forestry, together with other factors consequent upon an expanding economy, have, within the last two or three decades, conside...
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Letters

01 April 1958 Comments Letters S I R S , -- I should be most grateful if anyone who has any specimens of flatflies (Hippoboscidae), taken from birds, would lend or give them to me for examination connected with my research at the D e p a r t m e n t of Zoology, University of Hull, Yor...
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