Letters

01 June 1958 Comments Letters S I R S , -- U n d e r the above title (anlea, vol. L, p p . 432-434), R. Hewson has usefully drawn attention to the aerobatics-- familiar in individuals--that are sometimes performed by flocks of Ravens (Corvus corax) and has discussed questions suggeste...
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Letters

01 August 1954 Comments Letters SIRS,--A little confusion was caused on the Isle of May in 1953 by people claiming to assign Bluethroats (Luscinia svecica) to the White-spotted race (L. s. cyanecula) on the strength of wing-measurements and the relative lengths of the primaries. They we...
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