Is that an infrared pic? Don’t most deer stand cameras just take regular pics with a flash in dark conditions?
No, some of the cameras don’t use a flash.
There’s an awful lot of information missing, in the story and in the photo. It looks like an enlargement of a small area of the frame which lends credence to the bat theory.
It could be a lot of things, up to and including a hoax.
I put it into the serious crypto pipeline as best I could, we’ll see what happens.
Thing seemed to be on its knees, eating something? The motion detector went red, it looked up?
Yes, it seems to be taken (or faked) with a zero-lux camera. Some trail cameras use flash, but the images are infinitely better. For example see here.
With this said, it's nearly impossible to have this picture taken. The creature had to see the camera and approach it in darkness. The IR camera does not radiate anything until it is ready to take the picture (the battery won't last otherwise.) Such a camera would use a PIR sensor, and it doesn't radiate - it detects body heat. So the camera is 100% invisible, modulo scent - and a camera left in the woods for days will lose that quick.
There are also anatomical issues with the body of the creature. Its arms are so thin they would be either broken after a few days in this world, or they are made of composites :-) The nature doesn't make such beings for a reason - they can't survive. Considering that other people noticed that there are other versions of this photo, it is probably a hoax.
On top of that, there is that old problem of Loch Ness monster: a single creature or a tiny population cannot survive. Hunters know all about that. It is virtually impossible to have an unknown animal hiding in a populated territory; it would have to have some numbers, and then some of them would be seen alive or, more likely, dead. A chupacabra, if there is only one, has to be immortal and infinitely elusive, preferrably with a cloak of invisibility that is powered up most of the time. Even an intelligent ET, with smarts and technology, would find it problematic to hide from the locals for long.