The RSPCA is appealing for information after a young dog was found tied to railings next to the A6 near Clophill last week.
The Staffordshire bull terrier cross was found last Tuesday.
He was first seen at about 3.30pm and, when he was still there at 7.30pm, he was taken to the vets by a kind member of the public.
The dog, who is white with brown ears and a brown patch near his tail, was found in a lay-by next to Clophill Roundabout.
He was wearing an off-white rope collar with a black clip and was tied to the railings with his lead. There was a plastic container with water in it next to him as well as an empty one which had contained food.
There was also a plastic carrier bag containing a blue blanket and a note reading: “This is Kano please give him a new home.
“He dose not bite but is very strong He has hurt is claws. He is 1.5 year old Thanks.” (sic).
Kano was checked over by vets and was found to be in good bodily condition with just minor scuffs to his claws. He had also been neutered quite recently.
RSPCA inspector Stephanie Law said: “This is an unusual incident as Kano seems to have been well cared for.
“He is really well behaved and sits and gives a paw so someone has obviously looked after him.
“It’s just a shame that that person who must have cared for him left him next to a very busy road where anything could have happened to him.
“If people can’t look after their pets any more we urge them to seek advice from a welfare organisation rather than just dumping them somewhere.
“I am following up some enquiries but I would like to hear from anyone who has any information about where Kano may have come from to get in touch.”
Anyone with information about who abandoned Kano should contact the RSPCA inspector appeal line on 0300 123 8018.
If you would like to help the RSPCA, you can give £3 now by texting HELP to 78866. Texts costs £3, plus one standard network rate message.