I never had to deal with this issue before but now I do:
Furry Confusion so I now have to issue a proclamation:
All aquatic animals (pinnipeds, fish, whales, sea turtles, etc) are non-anthro <I.E. like "real-world" ones>.
All songbirds are non-anthro (sparrows, canaries, etc).
Most birds of prey are non-anthro (Peregrine Falcon, Harpy Eagle, Osprey, Golden Eagle, Red-tailed Hawk <possibly others> are anthro)
Most terrestrial animals are anthro (There may be exceptions but there are none so-far.)
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Hopefully that will clean up the 2 cases of furry confusion that have occurred.