Hi, I use it with a canon DSLR camera and it's really sturdy, I would assume if the wildlife camera can be attached then yes it should do the job. 

Yes it has a 12 volt power port on the bottom. But it takes a 4.0x1.7mm plug. Most external battery packs are 2.1... I had to get a 2.1mm to 4.0x1.7 adapter from Amazon to use my Stealth Cam 12v solar battery pack. I love it! Radio Shack has them cheaper if you are lucky enough to have one still in your area. 

For Canon DSLR+Marco Ring+E-TTL+GN14 can work with canon 6d mark ii 

FD-EOS fit for Canon FD mount lens and canon EF mount camera body. canon 60d is EF mount, so the adapter ring can work with your camera, but you need to check your lens mount. could you pls let us know your lens specific model? service(AT)kentfaith(DO NOT)com, Please note: It is not same between Canon FD mount and EF mount, this adapter ring is only for Canon FD mount lens, please contact us if you want to purchase for Canon EF mount lens. 

1. Canon DSLR mount(Canon DSLRs, e.g. Rebel Series, 700D 650D 600D 550D 7D 60D 7D etc) is called EF, usually expressed by EOS, and Canon mirrorless camera(Canon EOS-M mirrorless cameras like M1 M2 M3) was usually expressed by EOS M
2. Nikon DSLR mount(Nikon DSLRs, e.g. D40 D70 D3100 D3200 D3300 D5100 D5200 D5100 D7100 etc) is called AI or F, usually expressed by Nikon/AI, and Nikon mirrorless camera(Nikon 1 series mirrorless cameras like N1 1 V1 V2 V3 S1 S2 J1 J2 J3 J4 AW1 ect) was usually expressed by Nikon1