A few months ago I was walking the dog near my house when I found a mobile phone in the road. It was starting to rain and it was not a waterproof model.
I took it home and the owner rang me.... we arranged to meet about 10 minutes later. She was very thankful, as it was her business mobile...
I would hand it in to the authorities to allow the owner to claim it.
As the owner is Saudi I thought I'd check what the Koran says about lost property
From
https://islamqa.info/en/5049
If it was animals that could protect themselves, you can keep them