It's the first time Auckland shelters have euthanised dogs due to reaching capacity.
The hole was in a water tank customised to be Tiny's kennel.
The SPCA said there are very minimal standards that operators need to legally comply with.
Charlie is the most popular dog name in Wellington this year.
83 percent of dog owners at a workplace with a no-dogs policy wishes it allowed furry friends.
How communicating with your dogs will lead you both to a happier life
"We suspect she was tied up first before being shot".
The dog was showing signs of pain in her legs so was unable to come down the mountain.
Owner Pamela turned around to discover he'd just "disappeared".