>

Years ago the local zoo lost a pigmy falcon that was due to lay eggs at any time. Someone just cut their way into the enclosure and made off with it and it was never recovered.
"a cutting tool was used to intentionally make an opening in the fence of the small cat’s habitat, and a similar cut was found at a habitat for small monkeys" >

Definitely some crazy PETA people >

Or people looking to grab them to sell illicitly as pets.  There is a pretty active black market for exotic animals.
PETA would have gone after something bigger to make a big show of it.