They're stolen... MIA
This kind of stuff happens all too often.
I think that you need to ask yourself who knew about your location after doing a little internet digging. Finding your colony is as easy as getting the EXIF data off of one of your posted pictures.... (isn't GPS wonderful)
People are going to blame the kids but honestly... I don't think so.
The hallmark of someone that's in the industry and
KNOWS the species is that they took things selectively and they nabbed the gravid females.
They also closed the doors on the cages... while leaving others untouched.
Other keepers have been cleaned out after letting a person claiming to be eager hobbyist tour the colony... the owners leave for work or are asleep at night and they get cleaned out. They're not just some random criminal... these kinds of thefts are typically performed people that know things only an experienced breeder will know. As in the case of this guy that could quickly tell the difference between a good and bad egg
http://legacy.utsandiego.com/news/metro/20070615-1401-bn15birds.html
Those birds most likely went directly to someones own personal colony in another state and won't ever been seen publicly .. only the offspring will be sold on the market.
I imagine that's going to be the same case with these chams.
I'm sorry. This sucks and these people deserve broken legs IMNSHO.
I hope that this is just a pair of kids and that they get snitched on by someone that knows.
But I kinda doubt it... you don't hear about recovery very often.