This bird reserve used to be the private duck-hunting grounds of the maharajahs; now it's a national park and a UNESCO World Heritage site. It's home to hundreds of species of bird, and although the tour description claimed that you can also see cobras there, I didn't consider that a recommendation, and wasn't disappointed not to encounter any. (Although one pathway was blocked off because there were leopards in the neighborhood.)
It was 4:30 am by my body clock when I finally got to my hotel in Amman, so I'm not sure how much I'll actually get to see today. Tomorrow I leave for Petra.