Figure 2From: Population structure and mating system of the Red-crested Korhaan (Lophotis ruficrista) in South Africa Number of single Red-crested Korhaan males calling (without response from other males) and male groups consisting of two or more males spaced about 30–50 m apart, that called (peep peep sounds) in response to one another, recorded in the Borakalalo Game Reserve during 2010. Back to article page