“In South America, the nests and breeding behavior of many secretive species remain shrouded in mystery. This offers exciting opportunities for ornithologists and birders to fill in knowledge gaps. In recent years, a few individual researchers, like Harold Greeney in Ecuador and Gustavo Londoño in Colombia and Peru, have made out-sized contributions, describing numerous species’ “first” nests and other breeding behaviors, but much remains to be learned about how many Neotropical birds nest and raise their young.”