Hummingbirds exist only in the Americas. When explorers from Spain saw them for the first time, they were amazed at their iridescent plumage and called them joyas voladoras, flying jewels. Follow one of these glittering gems, a male Ruby-throated Hummingbird, as it makes its way south for a long journey to its winter home. Learn some amazing things as it travels to Mexico, encounters dangers, gets lost, and ends up in an unexpected garden in Florida. Marta...