Reviews

01 February 1964 Comments Reviews A Study of Bird Song. By Edward A. Armstrong. Oxford University Press, London, 1963. x i v + 3 3 5 pages; 17 plates; 43 figures and 14 tables. 45 s. Far more work has been done on the vocal behaviour of birds than of all other animals combined. Much of it...
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Letters

01 February 1964 Comments Letters 'Industrial' discoloration of House Sparrows Sirs,--I was rather interested in Ian Woodward's suggestion (Brit. Birds, 56: 470-471), following my note on 'industrial' discoloration of House Sparrows Passer domestkus {Brit. Birds, 56: 296-297), that white ...
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