Pantanos de Lima is a marshland, just south of the megacity of Lima. It has been declared a nature reserve and does in fact host a number of interesting species that require this type of biotope. When I was there last year, I photographed adult Pied-billed grebes, but I never saw any juvenile ones. This time, a juvenile Pied-billed grebe was among the first birds I saw, and photographed. (Canon EOS 1D X, Canon EF 600/4L IS II USM, Canon Extender EF 2x III, Sirui tripod, no birding hide).