. Bulletin of the British Ornithologists' Club. Birds. P. A. Clancey 97 1988108(2). Figure 1. Sketch-map showing the disposition of the 3 racial groupings of populations of the Ground Woodpecker in southern Africa 1. Geocolaptes olivaceus olivaceus (Gmelin). Karooid. 2. Geocolaptes olivaceus petrobates Clancey. Montane karooid. 3. Geocolaptes olivaceusprometheus Clancey. Montane; grassed slopes. N of Springbok, Little Namaqualand, NW Cape Province (see "Remarks" below). Crown deep brownish grey; back saturated olive-brown (Saccardo's Olive—see Ridgway 1912) marked with sh
. Bulletin of the British Ornithologists' Club. Birds. P. A. Clancey 97 1988108(2). Figure 1. Sketch-map showing the disposition of the 3 racial groupings of populations of the Ground Woodpecker in southern Africa 1. Geocolaptes olivaceus olivaceus (Gmelin). Karooid. 2. Geocolaptes olivaceus petrobates Clancey. Montane karooid. 3. Geocolaptes olivaceusprometheus Clancey. Montane; grassed slopes. N of Springbok, Little Namaqualand, NW Cape Province (see "Remarks" below). Crown deep brownish grey; back saturated olive-brown (Saccardo's Olive—see Ridgway 1912) marked with short, broken bars and spots of yellowish white. Throat dusky; upper breast with band of light olive- brown, speckled with yellow or white; mid-venter extensively saturated Scarlet Red, the flanks barred dark brown on buff. Range. Cape Province from the Peninsula north to Little Namaqualand, and east to c. 25°50'E. East of this, intergrades broadly in the eastern Cape and southwestern Orange Free State with G. o. prometheus and G. o. petrobates, the zone of secondary contact lying between 25°50/ and 27°35'E. Remarks. The description of G. o. theresae resulted from a comparison between Little Namaqualand specimens and others from the east of the species' range rather than with topotypes of the nominate race from the Cape of Good Hope. (b) Geocolaptes olivaceus petrobates Clancey, 1952: confl. of Malaoaneng and Little Bokong Rivers, Lesotho. Compared with last, crown bluish grey; back plain dark earthen brown (about cold Brownish Olive) without broken bars and spots of yellowish white. Throat and mid-breast whiter, and mid-ventral red paler, more pinkish (Peach Red/Scarlet). Wings darker. Range. High country of northeastern Cape and adjacent Transkei (Naude's Nek Pass, Ben Macdhui, and Pitseng Pass, Mt Fletcher) to the. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these
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