We uploaded the shapefile of the grid cells to a handheld GPS (GARMINeTrex) using DNR Garmin application. Using this, the grid cells were located on the field. Once a grid cell was located, we selected the existing trail in the grid or randomly decided the walking path in order to cover the entire grid cell. We turned the track mode on to record the path in GPS and walked slowly by searching for middens. We sampled 62 grids and during the walk, we recorded the geocoordinates for all detections of middens using a handheld GPS receiver (Figure 1). We also determined the average visibility as it is considered to be one of the influencing factors for midden site selection for chinkara 23 .
Camera-trapping: We used 30 'trail cameras' (HCO Scout Guard) and deployed five camera traps in each grid cell for five days. We placed one camera trap at the centre of each sub-grid and one at the centre of the main grid. The geo-coordinates for each camera trap location were recorded using a handheld GPS receiver. Apart from GPS readings of camera traps, data on time and date of camera deployment and removal, elevation of the area and terrain type were recorded. Camera traps were checked each morning to confirm the presence and assure proper functioning of the cameras. Camera traps were removed on the sixth day, and images were downloaded and organized according to grids and sub-grids.
Camera-trapping: We used 30 'trail cameras' (HCO Scout Guard) and deployed five camera traps in each grid cell for five days. We placed one camera trap at the centre of each sub-grid and one at the centre of the main grid. The geo-coordinates for each camera trap location were recorded using a handheld GPS receiver. Apart from GPS readings of camera traps, data on time and date of camera deployment and removal, elevation of the area and terrain type were recorded. Camera traps were checked each morning to confirm the presence and assure proper functioning of the cameras. Camera traps were removed on the sixth day, and images were downloaded and organized according to grids and sub-grids.