Rosenberg's tree frog

Rosenberg's tree frog, Rosenberg's gladiator tree frog, or Rosenberg's frog ("Boana rosenbergi") is a frog that lives in Costa Rica, Colombia, and Ecuador. Scientists have seen it as high as 966 meters above sea level.
This frog builds nests. The male frogs sometimes guard the eggs after the female frog lays them. Sometimes male frogs fight each other until one of them dies.
The adult male frog is 55.7 to 76 mm long from nose to rear end. The adult female frog is 57.4 to 75.5 mm long. However, most adult females are bigger than most adult males.