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(THW) for funding for field work; Leverhulme Trust (WCM) for funding for analysis and writing up results. Notes 1. Another population of chimpanzee (Pan troglodytes verus) in southeastern Senegal has been reported to dig wells (Galat-Luong & Galat 2000; Galat-Luong et al. 2009). The authors reported that apes used tools to dig their wells, but baboons as well as chimpanzees were said to dig wells, and no criteria were presented for distinguishing between the two species' wells. The first report is an abstract, and the second was published in a non-peer-reviewed journal. Neither presented any systematic or quantitative data, nor observations of behaviour, so these claims must be taken as tentative until documentation is provided.archaeology of manual laterality: well digging by wild chimpanzees. INTRODUCTION Bossou chimpanzees have shown low rates of meat consumption compared to other communities (Sugiyama & Koman 1987; Hockings et al. 2012). Therefore, the addition of data describing their prey repertoire is imperative for ecological and behavioral studies at this site. Here, we report a novel observation of bird consumption by one adult female chimpanzee in the Bossou community. METHODS Behavioral observations were conducted at Bossou, one of the long-term research sites for chimpanzees located at the southeast corner of the Republic of Guinea, West Africa (Matsuzawa et al. 2011). The core area used by Bossou chimpanzees includes approximately 6 km 2 , dominated by primary and secondary forest and surrounded by cultivated or abandoned fields and shrub forest. Consumption of the wild bird was observed by LY and BZ, who recorded all behavioral occurrences during the event ad libitum. TA, and FF) started to move. However an adult female chimpanzee Jr (estimated to be 54 years old) remained. For approximately ten minutes, Jr showed no movement. At 7:57 AM, shrubs began to rustle. We heard a typical call of coucal (a bird belongs to cuckoo family) from a nearby bush. The call consists of a series of 'hoos' which at first increase in rate and volume and die away at the end (Serle et al. 1990). A few seconds later, Jr suddenly moved toward the bush. We saw Jr capturing two nest-lings at once from a nest that had been constructed in the bush and located ca. 2 meters above the ground. Jr walked a few steps away holding the two nestlings one in each hand and sat on the ground. Jr started to take a …

<Note> Newly Observed Bird Consumption by a Chimpanzee (Pan troglodytes) at Bossou, Guinea, West Africa