SUMMARY: I saw +38 mammal species on a ten-day trip (20-29 June 2023) in the Tahuayo River Area. The highlight was Streaked Dwarf Porcupine (Coendou ichillus) which were the first in-situ records published for the Iquitos area; the species at the time was reported only from about ten other sites in South America. Peruvian Tree Rat and Long-tailed Spiny Tree Rat were common. Amazon Bamboo Rat was common locally. Eastern Pygmy Marmoset was easily seen at known study sites. Bishop’s Slender Opossum and White-bellied Slender Opossum was seen in the ARC area. Bats seen included Thumbless Bat. I organized the trip through Amazonia Expeditions and stayed at their Tahuayo Lodge and Amazon Research Center (ARC); my lodge-supplied guide was Juan Pacaya.

SUMMARY: On a two-night stay at Las Tortugas Lodge, on the banks of the Yacuma River, I saw 14 mammal species, excluding three identified only at genus level. Mammals included five primates, Bolivian River Dolphin, Crab-eating Fox and Common Four-eyed Opossum. I also saw 7 reptile species including Yellow-bellied Liophis and South American Sipo. The lodge is 4 km south of Santa Rosa de Yacuma (Beni Department, Bolivia) and 85 km northeast of Rurrenabaque.

SUMMARY: On a 6-day trip (2023 May 26-31) with Stuart Chapman to Kaa-Iya del Gran Chaco NP (eastern Bolivia) we saw 19 mammal species. Highlights were Jaguar, Puma, Tayra, Chacoan Peccary, Foster’s Punare and Chacoan Gracile Opossum. This trip was led by Nick McPhee of Nick’s Adventures.

SUMMARY: On a four-night mammal-watching trip (2023 May 20-24) with Stuart Chapman to Jaguarland (eastern Bolivia) we saw 29 mammal species, plus at least five with tentative identification; and 4 reptile species. Highlights were Jaguar (a mating pair and singles), Jaguarundi, Tayra, Six-banded Armadillo and a tree-roost of Lesser Bulldog Bat. Our guide was Mauricio Peñaranda del Carpio from Nick’s Adventures.

SUMMARY: In July 2024 I saw Red-shanked Douc Langur (Pygathrix nemaeus) on the Son Tra Peninsula on three different days. The best views were in a restricted area with Tuan (a Danang-based guide) after he had shown me Grey-shanked Douc Langur near Nui Thanh in the morning. I later saw Red-shanked Douc Langurs at the Lady Buddha complex and in trees at the road edge about 1.5 km before the Ban Co Peak viewpoint. There were also Rhesus Macaque at the Lady Buddha temple complex.

SUMMARY: As reported by Van Tuan et al (2019) there is a small population of rare Grey-shanked Douc Langur (Pygathrix cinerea) in a degraded forest area near the Tam My Thay commune (120 km southeast of Danang). Tuan (now a Danang-based guide) helps support the conservation of these langurs and he took me to the site on 20 July 2024 where we had great views for over an hour.