Monitoring of these leopards has been ongoing since August 2016. Despite deaths and births, the resident individuals and the general makeup of the leopard population have remained largely stable.

The ridge appears to be home to an average of 15-25 leopards, including cubs and visiting leopard.

The Wilderness & Wildlife Conservation Trust (WWCT) has been monitoring the leopard population in the proposed Peak Ridge Forest Corridor area for over 3 years. By the end of 2019, they had accumulated 6580 camera trap nights from 24 remote camera locations. In 2019, 9 new camera locations were added, 3 of which were reactivations from 2016. The number of remote camera days has increased annually, with 40% more in 2019 than in 2017. Over the combined period, 543 leopard images were obtained, and 28 different individual leopards were identified in the area, including resident, transient, and deceased individuals

Monitoring efforts were affected by the Forest Department’s harvesting of eucalyptus trees in the west-central portion of the Peak Ridge Forest Corridor, which forced the removal of 3 sets of remote cameras. As a result, monitoring in that section of the ridge was curtailed. There are plans to reinstate these camera locations once harvesting is complete.

Arnold and Ozzie have been frequently detected throughout the study period, occupying neighboring ranges with some overlap. Another male, Whitley, has established himself in the overlap area between Arnold and Ozzie. This strategy of establishing oneself in an overlap area is typical of male leopards in Sri Lanka.