The original cause for the development of stray dog populations is to be located in peoples’ households. Bitches are neither spayed nor sufficiently isolated from males when in heat. Therefore, bitches as a rule whelp several times during their lifespan. For the whelps, frequently no new owner is found. The sad reality is that frequently one of the whelps, often a male, is kept to avoid bothering the household with new unwanted offspring in the future, while the other puppies together with their dam are abandoned.