John A. Gwynne (American, 20th century), “Forest Falcons of Central Brazil”, Laughing Falcon (Herpetotheres cachinnans), Barred Forest-Falcon (Micrastur ruficollis), Collared Forest-Falcon (Micrastur semitorquatus), Pencil, watercolor and gouache on paper, 2006, On loan from the collection of Dr. Michael and Elyn Stubblefield