The Hebrew word for a sparrow is דרור Dror which also means freedom. In Leviticus 25:10 the word Dror דרור is mentioned in the context of freeing the land of humans holding and returning it to the creator.
“וְקִדַּשְׁתֶּם אֵת שְׁנַת הַחֲמִשִּׁים שָׁנָה וּקְרָאתֶם דְּרוֹר בָּאָרֶץ לְכָל יֹשְׁבֶיהָ יוֹבֵל הִוא תִּהְיֶה לָכֶם”
ויקרא כ”ה י
In this manner everybody is free: a) The landlord is no longer holding the land. b) The farmer who leases the land is free because he does not have to pay the leasing fee to the landlord. c) The land itself is free from ownership or leasing and can just be and rest. In this way, both humans and nature are free by just being and existing with no interests.
To hear the pronunciation of the word Dror in Hebrew click on the following link, and inside click on the blue triangle.
All the best 🙂