01 July 1939
Comments Notes I THINK it will be of interest to record a case of bigamy in Montagu's Harrier (Circus pygargus), which I had under observation in England during the summer of 1938. It is well known that this species has a tendency to nest in small colonies, but I do no...
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01 February 1935
Comments Letters SIRS,--May I say something on this vexed subject ? I speak of those territorial species whose young depend upon insects for food. Three sets of facts seem connected :-- (i) T h a t in a cold and wet breeding season we find infertile eggs, chicks dead in t...
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