. Bulletin of the British Ornithologists' Club. Birds. N. Stronach 182 1990 110(4) N T 0 100 200 V/a LAND OVER 1000m ^> • Ramu Sugar Estate. 3*5- 6°S- Figure 1. Map of Papua New Guinea showing the locations of the Bulla Plains and the Ramu Sugar Estate. The approximate extent of land over 1000 m is also indicated. dense Imperata cylindrica grassland on slightly higher ground which is less prone to flooding. There are also small relict areas of seasonal Phragmites karkar reedswamp, the distribution of which is considerably limited by heavy grazing of introduced Rusa Deer Cervus t
. Bulletin of the British Ornithologists' Club. Birds. N. Stronach 182 1990 110(4) N T 0 100 200 V/a LAND OVER 1000m ^> • Ramu Sugar Estate. 3*5- 6°S- Figure 1. Map of Papua New Guinea showing the locations of the Bulla Plains and the Ramu Sugar Estate. The approximate extent of land over 1000 m is also indicated. dense Imperata cylindrica grassland on slightly higher ground which is less prone to flooding. There are also small relict areas of seasonal Phragmites karkar reedswamp, the distribution of which is considerably limited by heavy grazing of introduced Rusa Deer Cervus timorensis. Despite considerable travel through all 3 habitats between 1979 and 1982, no further records of grass owls were obtained from the area. On 27 May 1981 a nest of Grass Owls containing 7 young was found in Imperata cylindrical Themeda australis grassland on Ramu Sugar Estate (5°58'S, 145°53'E, c. 400 m alt) (Fig. 1). The young varied in size from medium downy young to almost fully feathered. Several freshly killed unidentified mice were present in the nest. The grassland appeared to be transitional in character between Imperata cylindrica grassland on rela- tively rich soils and Themeda australis grassland on degraded soils (Henty 1982). Both types of grassland are extensive in the Ramu River valley, the latter extending on to the slopes of the surrounding mountains. Beehler (1978) gives no records for the Grass Owl from either lowland or highland grassland in Morobe Province, and it has been recorded previously in highland grassland only down to an altitude of c. 2500 m (Coates 1985); this contrasts with its habitat in Australia (Calaby 1970), where it occurs mainly in lowland grassland, and in southeast Asia (King etal. 1975), where it occurs below 4000 feet. DraffaneJa/. (1983) recorded. 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 ma
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