COMMON NAMES: Zebra finch, chestnut-eared finch, spotted-sided finch, and Australian Aboriginal names “nyi-nyi” and “nyeen-ka”
SCIENTIFIC NAME: Poephla guttata
ADULT SIZE: 4 inches long; one of the smaller (though not the smallest) finches
Zebra finches are dimorphic, which means you can tell the sexes apart by looking at them. Males have black and white bars on the throat and breast, orange cheek patches, and brown on the sides of the body. Females are gray colored in those spots. Both males and females have red-orange beaks, although the male’s beak is much brighter in hue.
Source: Zebra Finch — Full Profile, History, and Care (thesprucepets.com)