
doi: 10.1038/022097c0 , 10.1038/022122a0
YOUR correspondent “A. N.” (antea, p. 97) does not seem to be aware that the best observers are nowadays agreed in believing that the hen cuckoo does not sing. Hence his suggestion in regard to the difference of note observed by Mr. Birmingham (antea, p. 76) hardly applies to the case in question.
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