Owl finches in Australia are generally sold as two colour varieties : the normal form and the fawn mutation. One source describing the species says there are two colour varieties in captivity, with the key split being white- rumped/normal and black-rumped forms.

What sellers usually mean

  • Normal : the standard dark brown/regular look.
  • Fawn : a lighter brown mutation.

A breeder-facing Australian listing also describes owl finches as coming in two body colours, normal and fawn.

Practical takeaway

If you are asking how many colour variations they can be advertised as for sale in Australia , the safest answer is 2 common colour variations. Some sellers may use different names for the same look, but those usually do not mean extra distinct varieties.

Note

This is a general species-level answer, not a legal sales rule. Exact wording can vary by breeder and state, but the commonly listed market forms are the two above.