Intersex is an umbrella term encompassing all traits that fit into neither male or female. Intersex covers things such as hormone differences, chromosomes, reproductive organs, and more. some traits are more visible at birth, however, some cases need testing. extra chromosomes, hormone production, reproductive organs, and other, are often various with different conditions (klinefelter's, mosaicism, turner syndrome, congenital adrenal hyperplasia, mayer-rokitansky-küster-hauser syndrome, etc) there's more specifics I could go into but it gets rather...anatomical. all that needs to be said is that finch is also infertile, and will not be able to get pregnant, or get others pregnant. https://my.clevelandclinic.org/health/articles/16324-intersex
