From what you say simpler is better.
How about the rangers just take a photo with a phone and share it to a known email address?
Take a short selfie video (note) or sound recording and send to that email address?
In the interest of simplification,... (read more)
Ive been using Filemaker pro as a Database as its easy to tailor make the DB to suit your need, get the images imported, and set the fields up as pull down menus. FMP is compatible with Mac/PC ad the software is robust and well supported. Data can then be exported as required,... (read more)