. Bulletin of the British Ornithologists' Club. Alexandre Aleixo et al. 264 Bull. 2008 128(4). Figure 1. Locations where Yellow-cheeked Becard Pachyramphus xanthogenys has been recorded and collected to date in the Brazilian state of Acre: (a) Esta^ao Ecologica do Rio Acre (11°00'S, 70°13'W), and (b) Transacreana' road (09°55'S, 68°20'W). Brazil [MPEG 58925]), on hilly and broken terrain covered by Guadua bamboo with scat- tered emergent trees along the 'igarape do Tombo' creek (elevation m), at Estagao Ecologica do Rio Acre, a 77,500-ha conservation unit on the Brazilian / Peruvi
. Bulletin of the British Ornithologists' Club. Alexandre Aleixo et al. 264 Bull. 2008 128(4). Figure 1. Locations where Yellow-cheeked Becard Pachyramphus xanthogenys has been recorded and collected to date in the Brazilian state of Acre: (a) Esta^ao Ecologica do Rio Acre (11°00'S, 70°13'W), and (b) Transacreana' road (09°55'S, 68°20'W). Brazil [MPEG 58925]), on hilly and broken terrain covered by Guadua bamboo with scat- tered emergent trees along the 'igarape do Tombo' creek (elevation m), at Estagao Ecologica do Rio Acre, a 77,500-ha conservation unit on the Brazilian / Peruvian border, in south-east Acre, Brazil (Fig. 1). The specimen shov^ed all those characters distinguishing P. xanthogenys from congenerics, most conspicuously: the bright golden-yellow cheeks and throat, and lack of a grey nuchal collar (Fig. 2). Prior to this, a pair of P. xanthogenys was seen and heard above the mist-net where the specimen was taken; earlier, on 15 August, anoth- er pair was located vocalising intensively and chasing each other on the north bank of the rio Acre at a similar altitude and habitat, km away. Unfortunately, on neither occasion were birds observed carefully, mainly because AA thought they were P. viridis, whose song is very similar to that of P. xanthogenys (KJZ tape-recordings). During a second trip to Estagao Ecologica do Rio Acre in the following rainy season (3-16 February 2006), no P. xan- thogenys were located. Subsequently, on 8 September 2006 EG collected another specimen (tentatively sexed as female by plumage) of P. xanthogenys (MPEG 61447) in a logged forest km from the Transacreana' road (AC 090), km west of Rio Branco, the state capital of Acre (Figs. 1-2). These specimens are the first records of P. xanthogenys for Brazil, and represent a signif- icant range extension into lowland Amazonia. The nearest previous record is from 'Hacienda Amazonia', near Manu National Park, dpto. Madre de Dios, Peru, in June-July 2002 (Leb
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