World Bird List

Species factsheet
Spotted Thick-knee (Burhinus capensis)

Order: Burhinus capensis
Family: Stone-curlews, Thick-knees (Burhinidae)

Voices can be found here (external link)
Subspecies and Distribution
Subspecie Distribution
maculosus Senegal to Somalia south to n Uganda and n Kenya
dodsoni coastal Somalia and Saudi Arabia
capensis s Kenya to South Africa, west from Zambia to Angola
damarensis Namibia, Botswana and w South Africa