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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Notes

01 June 1958
Comments Notes " R e c e n t reports and n e w s " section in our March number (antea, p . 132), brief mention was made of the fact that a number of North American Ruddy Ducks (Oxyura jamaicensis) had escaped from the Wildfowl Trust collection at Slimbridge, Gloucesters...
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