Are they a kill shelter?

I would go with what Jonathan Joseph Van Dam sent you as a reply. Plus according to the reply; Yes, they'll Euthanize an Animal Only if it Becomes the Last Resort.

Spca is no kill shelter

According to their About page, "The Sacramento SPCA believes in helping the greatest number of animals with our available resources. Euthanasia is determined by the results of the animal’s health and behavioral evaluation and the resources we have available to us at the time. The Sacramento SPCA is committed to saving animal lives and practices each step of the “no kill” equation including: providing medical care, adoptions, working on behavior and training, developing partnerships within the community and with rescue groups, maintaining a strong foster program, providing free services to seniors to keep their pets, and operating an on-site low-cost spay/neuter and vaccine clinic. We utilize every resource we have before the difficult decision to euthanize is considered. The Sacramento SPCA also offers an option for owned animals when there is a verified need for end of life services." https://www.sspca.org/about I hope this helps.