Walter W. Wetmore was an American ornithologist known for his contributions to the study of birds. He was particularly recognized for his work on the taxonomy and distribution of various bird species in the United States and Caribbean regions. Wetmore's research helped to enhance the understanding of avian biodiversity. Wetmore served as the curator of birds at the Smithsonian Institution and published numerous scientific papers throughout his career. His dedication to ornithology also led to the discovery and description of several new bird species, making a lasting impact on the field of bird conservation and study.