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قراءة كتاب Birds from North Borneo University of Kansas Publications, Museum of Natural History, Volume 17, No. 8, pp. 377-433, October 27, 1966
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Birds from North Borneo University of Kansas Publications, Museum of Natural History, Volume 17, No. 8, pp. 377-433, October 27, 1966
The avifauna at Quoin Hill was a mixture of montane, submontane, and lowland species. Smythies (1957:527) defines four altitudinal areas of distribution: Higher Montane, Montane, Submontane, and Lowland. Higher Montane birds have not been recorded on mountains the summits of which are lower than 5,000 feet, although on higher peaks the actual lower limit of occurrence may be considerably below 5,000 feet. Montane birds have not been recorded on mountains the summits of which are lower than 3,000 feet, although specimens may have been taken below that altitude on higher peaks. Submontane, as defined by Smythies, is a comprehensive term applied to birds occurring from sea level to an elevation of 5,000 feet but ordinarily not found away from mountainous country. The Lowland birds normally range from sea level to 3,000 feet. Of the 125 species of birds observed at Quoin Hill, 1.6 per cent were