Zebra finches (Taeniopygia guttata) the best known Australian diamond and raised around the world, measures ten inches championship but are larger for being selected for this purpose. A bird is perfect for beginners because their breeding is pretty simple, does not require much dedication just good food and hygiene, all right.
There are two subspecies, the nominal and less known (timor diamond), is smaller and the males do not have the horizontal strip of the chest, and Tg castanotis (we can say that is normal).
Very much targeted mutations, peep, bruno, masque, isabela, black face, black breast, black cheeks, penguin, saddled, back light, orange chest ....
Except for whites, sexual dimorphism is very obvious bearing males cheeks and flanks colored (there are also females with swarthy cheeks and black).