Plates 9-11 The photographs of the Orphean Warbler Sylvia hortensis on plates 9-11 were taken during June 1968 in Castelode Vide in central Portugal; both of the nests were in olive trees, one being occupied by a young Cuckoo Cuculus canorus (plate lib). This robust-looking warbler is about six inches long. The adult male has a dull greyish-black or brownish-black cap, usually darker in summer and...

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