Believe it or not my neighbors, when I was growing up in San Antonio, TX had Gibbons in a big cage on their property. As a small child I was mesmerized by their singing. I can still talk to Gibbons in their voice when I go to the Zoo. I miss hearing their songs.
I know, the baby's eyes: adorable!! Was the picture taken, when it had snowed? The background and the color of their fur have a very good contrast to each other.