Many thanks to @ersle for making me aware of this situation.
These twitter accounts are all owned by an individual pretending to be a rescue organization. Quote:
Animals shown on this website were my pets & are cute examples only, so far. This is a "Donation Drive" ONLY to get my Pet Rescue started/functional in the near future, if we can raise enough money.
pet-rescues.org is NOT a shelter or rescue. Please inspect his web site for yourself. There is no rescue operation, only pictures of his personal pets, web videos, and a request for funds. secretsystem.org is a sister site with links to pet-rescues.org. animal-rescues.info is a new site owned by the same creep. It redirects to pet-rescues.org.
Please help the hard-working, REAL rescue organizations by visiting any of the twitter accounts listed and reporting them for spam. Thanks!