CYANISTIC EGG O F C U R L E W S I R S , -- T h e r e is surely nothing' very remarkable about the finding by Messrs. W . G. Hale and G. W e b s t e r of a single cyanic type egg of the Curlew (Numenius arquata), on a Lancashire moor on 7th May 1955 (antea, vol. xlviii, p . 455). Cyanic eggs are normally prematures lacking their final pigmentation. A premature can surely often be laid outside a nest...

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