Male impala form small bachelor herds during both the wet and dry seasons. These bachelor herds are generally smaller than herds of females, numbering around 4 members, compared to upwards of 10. Juvenile males begin to join bachelor herds at 8 months of age. Within the herds, bachelor males are less territorial toward each other than males in mixed herds. These males maintain, on average, a relatively large distance of approximately 2.5–3 meters (8.2–9.8 ft) between them. However, bachelor males exhibit reciprocal grooming despite occasional aggressive interactions between bachelors.
Info sourced from en.wikipedia.org/wiki/Bachelor_herd
Photo capture date & Location: 2018-08 Segaia Bush Retreat