Lost Stumpy-Tail Dog Near Warnbro Beach!

Male, Stumpy-tail Cattle Dog, white with tan spots/patches, no tail. Left home yesterday morning after we left for work & was seen at the Warnbro dog beach around 8-9am near St. Malo Cove, playing with other dogs in the dunes. We were unaware that he was missing until getting home from work in the afternoon. Has not been seen since.