On the evening walk of 17th organized by RECS we saw the Scissor-tailed Nightjar and the Sayaca Tanager among other birds. As soon as we went in a heterogeneous group of birds were enjoying a bath in some pools of water on the Lizards Path. By the time we watched the nightjar it was almost dark and flash was not allowed to be used. Anyway the pair of nightjars did not seem to be worried by our presence and we stayed long watching them. They performed acrobatic raids in the air to engulf insects. But the male (bottom) exhibited a curious behaviour. It positioned parallel and head to head to the female, jumped and fell in the same place but looking backwards, then again to the head-to-head poisition. It repeated this figure another couple of times and they both flew away. A courtship?