I searched for my first ferret for 4 days years ago and didn't give up , this paid off as i found him fit and well with a full belly .
I had mates who couldn't stand ferrets and cold weather helping me out , people may think that 4 days searching for a ferret is daft but when its your own or your mates it doesn't matter, its a living thing at the end of the day
Id be back at the earth until i found something dead or alive then you could rest easier
Just my opinion
Atb
Matt