Yahweh uses this question to emphasize that Job cannot explain why ostriches behave the way they do. Alternate translation: "You do not know whether the pinions and plumage of the ostrich represent love when they wave their wings proudly." (See: [[rc://en/ta/man/translate/figs-rquestion]])
The Hebrew word is uncertain. Possible meanings are 1) "of faithfulness" or 2) "of a stork." The name of the stork meant "the faithful one" or "the loving one" because people knew that storks take very good care of their chicks.