Following are a number of back-translations as well as a sample translation for translators of Job 39:13:

• Kupsabiny: “The wings of the ostrich are happily flapping
  but it is not flying like a stork.” (Source: Kupsabiny Back Translation)
• Newari: “The wings of the ostrich flutter with joy,
  but it is not able to fly like the stork.” (Source: Newari Back Translation)
• Hiligaynon: “‘(It is) beautiful to-look-at the wing(s) of the ostrits/ostrich when it flaps, but it can- not -match with the beauty of the wings of a tulabong/sort-of-white-heron.” (Source: Hiligaynon Back Translation)
• English: “’“Think also about the ostriches. They joyfully flap their wings,
  but they do not have wing feathers that enable them to fly like storks do.” (Source: Translation for Translators)