Unfortunately, this is a common site around Tarcoles and Jaco, AND all of Costa Rica for that matter.
The McKee Project members in Jaco have stepped up and made tremendous progress with their recent visit to Tarcoles by setting up a temporary clinic for the day to neuter and care of the local dogs. 81 dogs were neutered in one single day!
You can read about it here. Thanks Mike at www.JacoSun.com for such a touching article and all the people who participated in this grand effort to help these dogs.
Especially Trish, who took several trips up the mountain to round up dogs, brought them to Tarcoles so they would not be neglected. She has pups at her home right now ready for adoption. Just contact McKee in Jaco for info. Link is at the site above or here, McKee Project Jaco.