The Enigma of the Florida Fancy and the European Isabel Zebra
Finch Heterozygous "Double splits" Florida Fancy and European
Isabel. (male left, female right)  The Enigma of the Florida
Fancy and the European Isabel Zebra Finch Ever since Zebra finch
breeders in the US and in Europe became aware of the
similarities in color between the U.S. mutation known as the
Florida Fancy and the European mutation known as Isabel, there
were assumptions, miscommunications and confusion surrounding
the true nature of these mutations and their relationship. It
was only over time with lots of discussion between breeders on
both continents, exchange of photos and now with extensive cross
testing is the true nature of these mutations being understood.
A definition of each mutation, its method of inheritance,
variations due to selection and results of combinations with
other mutations, namely fawn, are needed first to understand
what these mutations look like in their pure form before we
discuss their relationship and combinati