Valentine......go to
www.chasingame.com and check out the many trail cameras available,there are non-visable Black-Flash cameras,Cameras that will use a Sim Card and send pics to Your Cell Phone and the normal lower cost trail cameras that simply use an SD card to store the pics!
Bushnell are good quality Cameras,Moultrie is another,Cuddeback are pretty good and the RecoynX are the best are far as quality,performance and Customer Service in my opinion but cost is $400.00-$500.00 + range.
There are many others to check out also so it's up to You to check out different Makes,Models and Brands and ask lots of Questions before purchasing one!
You sure You want to look into this new High Tech stuff....might go against Your Nature?