Deuteronomy 22:1-3 teaches that if you come across your brother's lost ox, sheep, donkey, cloak, etc., you must return it, even if you do not know the one who owns it. Does this mean that if I see a stray animal such as a dog with a collar, am I required to approach it, check the tag, and locate the owner?
Also, would the answer change if there is no way to determine whether the animal has an owner (e.g., if you see a dog wandering about without a collar)?
Related question: Does Deuteronomy 22:1-3 apply to dangerous animals?
Note: To make sure these questions wouldn't be duplicates, I first asked here: Does my desire for extra information on Deuteronomy 22:1-3 warrant a separate question?