Having had disappointing views of Sumatran Ground Cuckoo at Way Titias in both 2008 and 2009 it was time to try again. After 2 and a half days with only some calls things were not looking good, luckily on my last afternoon I found a pair calling to each other either side of the path, I then spent the next 90 minutes with them as the circled me calling ad occasionally coming into view.