. Bulletin of the British Ornithologists' Club. Vol. 81 86 1961 fishing, the cormorants would climb onto a hippo's neck from behind and rest on its head. Fishing followed by resting was observed six times. In the Luangwa Valley, several observors have recorded both species of oxpecker {Buphagus) on hippo. No further details will be given here, as the associations of these two species as a whole are under current study by Attwell. But in the case of the other birds mentioned it would appear that hippo are used for perching in the same way as are rocks or other stationery objects in water. J. M.
. Bulletin of the British Ornithologists' Club. Vol. 81 86 1961 fishing, the cormorants would climb onto a hippo's neck from behind and rest on its head. Fishing followed by resting was observed six times. In the Luangwa Valley, several observors have recorded both species of oxpecker {Buphagus) on hippo. No further details will be given here, as the associations of these two species as a whole are under current study by Attwell. But in the case of the other birds mentioned it would appear that hippo are used for perching in the same way as are rocks or other stationery objects in water. J. M. Feely, who has recently joined my department, informs me that at Lake St. Lucia, Zululand he has frequently seen the Common Sandpiper (Tringa hypoleucos) perched on hippos, and on one occasion he even saw one taking and eating leeches {Hirudo sp.) off a hippo. A couple of further records may also be mentioned. On 23rd March 1958, at mid-day, on the Luangwa at about 12 40'S., Attwell saw one Common Sandpiper and one Cattle Egret perched on the backs of a school of hippo lying in shallow water off a sandbank in the middle of the river. On 2nd July 1959, by the Luangwa at about 13 S., Senior Game Scout H. William saw three Black Crakes {Limnocorax flavirosfra) running about on the back of a hippo which was out of the river, warming itself in the sun at See Article opposite page. The three races of the Emerald-spotted Wood Dove in Southern Africa. From left to right: T. c. volkmanni, T. c. zambesiensis and T. c. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original British Ornithologists' Club. London : British Ornithologists' Club
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