Mixed feelings on that one - two easy groups and two very tough to discern - I imagine there would have been any number of arbitrary ways to differentiate between two discrete groups of animals. Cheers though.

Normally an admirer of your grids Aetees but I think this one needed Two Reeds on there as well. Without it, it's just the 3 obvious plus one of two others to make a link so 5 seconds of a job. And then that link almost automatically makes the 2nd link too. A rare miss on your part. :-)

excellent