Nice pictures ~ It looks like you're having an amazing adventure.
I was in this zoo last year. The best nature reserve I've ever seen in my life. We rent motorcycles together with my brother in Cat Motors s ervice http://catmotors.net/ and in addition to the zoo we visited a lot of temples of waterfalls. I should honestly say that Chiang Mai really gave us unforgettable adventures and photos. I'm happy for you a lot!