Guy led and guided my wife and I around the Misiones region south and east of Iguazu for 3 days late in the summer of 2018-19. The program was customised to our particular interest in photographing the feathered friends. His sharp eye and in-depth knowledge of local birdlife we came almost to take for granted as he served up round after round of additional species in subtly different environments. For us the bonus was the continual learning through our easy conversation, about natural history more generally in the region, political and environmental history; the lives and activities of local people. It’s clear he lives in and loves this central part of the continent (extending into surrounding countries). It felt more like spending time in this unfamiliar region with an expert friend than commissioning (at very reasonable price) a commercial guide.