Really! What Are They Trying To Say Here...

Ran across this sign last year in a park in Shenzhen.  This is not so much a translation error as a "WTF are they trying to say" thing.

 The meanings of some are quite clear, others, not so much.  The middle symbol in the top row for example. Does this mean "No Butterflies" (an odd regulation for a park I think, even in China), or perhaps "No Rorschach Testing"  The middle symbol in the second row is even more cryptic.  "No fishing for birds" perhaps?