Plates 61-63 The 28 species of Old World orioles (Oriolidae) form a remarkably homogenous group of arboreal passerines of wide distribution over Africa, Eurasia and Australasia. Systematically they are placed between the drongos (Dicruridae) and the crows (Corvidae) and are completely unrelated to the 'American orioles' (Icteridae), a much larger and more diverse family derived from emberizine stock...

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