Gary Bauer, [15 Sep 2023 at 07:35:46]: Please can you share (if different) your rhino ear notching numbering? The one I use is in picture (triangle for cows and square for bulls. Thank you The Black Rhino Range Expansion Programme (BRREP) uses this: Females V Males U (round) HO Reuter : Henry Labuschagne : Erik Verrynne, [15 Sep 2023 at 09:12:03]: We use the 1124 system in Botswana. So double notch at the bottom and different number allocation. Since we have all the rhinos on a single database, we use duplicate for males and female otherwise we run out of available numbers. Gary Bauer, [15 Sep 2023 at 09:39:45]: In this system, do you use 2 notches at certain places to show 8 and 9 (double 4 and 1?) Erik Verrynne, [15 Sep 2023 at 09:55:02]: There are no 8 or 9 with this system. That is why we use the 1124. Double 1 gives you more options. Shaun Beverley, [15 Sep 2023 at 11:29:42]: Gary, I think this is a stupid system, but it’s what the animals arrived with so that needs to be continued.