The Puerto Rican twig species closely resembles the twig species of Cuba, Hispaniola, and Jamaica in morphology, habitat use, and behavior.

波多黎各的嫩枝物种在形态、栖息地用途和行为上与古巴、伊斯帕尼奥拉岛和牙买加的嫩枝物种非常相似。