|.Plain-pouched Horbills Aceros subruﬁcollis in a ‘V’ shape formation.|
Annually, hundreds of Plain-pouched Hornbills, Aceros subruﬁcollis, are seen in the Temengor Forest Reserve between the months of August and September. The Malaysian Nature Society (MNS), an environmental non-government organization (NGO), conducted a 64-day survey with assistance from volunteers to count the daily numbers of A. subruﬁ collis present at dawn and dusk during their mass movements over Pos Chiong. The Plain-pouched Hornbill ﬂ ocks were observed heading north-east during the dawn surveys and south-west during the dusk surveys. The highest number of A. subruﬁ collis counted during the survey was 3,261 individuals whilst the lowest number was 595 individuals in a single count. This paper was presented at the 5th International Hornbill Conference jointly organised by the National Parks Board (Singapore) and the Hornbill Research Foundation (Thailand), in Singapore on 22nd–25th March
KEY WORDS. Plain-pouched Hornbill, Aceros subruﬁcollis, Malaysia, conservation
Ravinder Kaur, Teresa Ong, Kim Chye Lim & Chin Aik Yeap. 2011. A Survey on Mass Movements of the Vulnerable Plain-pouched Hornbill in the Belum-Temengor Forest Complex, Peninsular Malaysia. Raffles. Bull. Zool.
Ho Hua Chew, S. Supari. 2000. Observations of Plain-pouched Hornbills Aceros subruficollis in Tasek Temengor, Peninsular Malaysia., Forktail, 16: 65 - 67
PLAIN-POUCHED HORNBILL Aceros subruficollis