We saw a guard walk slowly towards the sounds with a lantern, leave it and back away. In the morning we learned that hyena had been all over the camp, which is usual, but the lion that came in to fight with them was not. The light drove them away. Next was Ngorogoro Crater , perhaps the densest collection of wild animals in the world. It is the largest unbroken, unflooded caldera in the world and has been declared a World Heritage Site.
Animals can and do come and go but, by and large, the population is very stable.
Two anomolies - no giraffe and no female elephants. The next night two elephants showed up. We spent a full day in the crater and it really was a full day. For the first time we could drive alongside hundreds of animals, wildebeest, zebra, gazelle, impala, warthogs dominated and you could imagine what it would be like during migration with thousands of these wherever you looked. The lake seemed empty but then we'd see these eyes appearing here and there.