I'm looking at the photo's in the database (thank you!) but I'm having some difficulty picking out features that would distinguish one grazer from another unless they're side-by-side (and even then, I can't pick features for comparison).
Anyone? Are there facial markings that are decidedly different? Tails? Backs? Eyes? Other?
Example, when I saw the Kudu this morning, I thought it was one of the Impala until I looked it up in the database and saw the striped markings on his back.