The dog, emaciated and covered in feces and urine, was accompanied by a handwritten note outside the door when Mount Vernon animal shelter employees arrived for work the morning of July 18.
"Hello, my name is Emily. I found this dog in my backyard. I was trying to give it food, but it wouldn't eat or move. Maybe you can help it."
No contact information was included.
Now, Society for the Prevention of Cruelty to Animals of Westchester are searching for the dog's abuser as they rush to nurse the 7-month-old pup back to health.
"This is definitely the worst case I've ever seen," said Ernest Lungaro, the Westchester SPCA's director of humane law enforcement. "I don't think he would have made another day without any treatment."
The 7-month-old pit bull/Labrador retriever mix, named Louie by the shelter's employees, is still recovering after being discovered nearly 30 pounds underweight and unable to walk, Lungaro said. Wednesday, the dog is scheduled to undergo several tests, as veterinarians look to see if he's suffered any organ damage and whether his immune system can function, as he lacked any white blood cells when he was discovered.
"(The abuse) wasn't just for a few days," Lungaro said. "It was definitely, from my estimate, longer than a couple of weeks."
Lungaro added that while Louie is in better spirits, and is able to walk for brief periods, it's still unclear whether he'll survive. Ideally, he'll be nursed back to health and put up for adoption, Lungaro said.
In the meantime, authorities would like to speak to the woman or girl who left the dog as they look for Louie's owner, who faces animal cruelty charges that could result in jail time, Lungaro said.
Anyone with information is urged to call the SPCA of Westchester at 914-941-7797.