Counting night time visitors on a budget

Greetings!

I'm working with a team that is developing a device to scare predators away from animal corrals in Kenya. To capture objective data concerning the effectiveness of these devices, we were hoping to deploy camera traps to see who is coming around each night and how they behave near the corral. We also do not have a large budget for cameras, so I was hoping someone here might have some suggestions for budget camera traps that will accomplish our mission.

Some additional details:

  • The cameras will be deployed for at least a year
  • Support personnel will be available on a weekly basis to offload images and/or change batteries