Letter

01 February 1943
Comments Letters SIRS,--As the Statement in The Handbook of British Birds (Vol. III, p. 109) that the Osprey (Pandion h. hali/ztus) last bred at Loch Arkaig in 1902 is incorrect this should be corrected. A pair nested regularly ever since I can remember up to 1908 and the...
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Notes

01 February 1943
Comments Notes IN February, 1942, seventy-five nesting boxes were put up inone of the oak woods of the Forest of Dean, with the object of encouraging the breeding of insectivorous birds (tits, in particular) and thus alleviating, if possible, the recurrent outbreaks of...
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The Age of the Blackbird

01 February 1943
Comments Main paper THE potential age, the age to which birds can live, has been the subject of several papers, the earlier ones based on records in captivity, e.g. Gurney (1899), Mitchell (1911), Flower (1925), and the later ones on ringing returns, e.g. Witherby (1926), Ni...
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Letters

01 September 1939
Comments Letters SIRS,--In "Some Notes on t h e Diurnal Song of Birds " (antea, p . 4) Mr. Marples states t h a t on t h e average t h e Blackbird, a t Inverness, begins t o sing in the morning 74 minutes earlier than Blackbirds do i n Hampshire, t h a t is, after correct...
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Notes

01 September 1939
Comments Notes PROOF of the sex of the bird choosing the nesting-site is generally so difficult to obtain that it seems worth while to record some evidence in the case of a House-Sparrow (Passer d. domesticus) in my garden in the spring of 1939. Early in March I notice...
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