Fernando Guerra has one last day here to try and add to the butterfly list. He has already registered 39 species at this site and incredibly 21 are new records for the park. Today he brings back to camp an example of the rather bluntly named warty toad (Rhinella espinola) that poses for photographs before getting back to the business of searching for food in the shape of invertebrates. The arrival of a mechanic from La Paz offers hope for Rita the car but to no avail – a spare part is required...