The clinic is not an infinite resource. That’s the whole post, really, but here’s what it means in practice.

A high-volume spay/neuter clinic runs on a fixed number of surgery slots per day, staffed by people who are almost always doing this on top of, not instead of, their regular caseload. Every slot you book and don’t fill is a cat from someone else’s colony that didn’t get fixed that day. Every cat you bring that turns out to already be fixed, or too sick for that day’s surgery, or not actually the age you guessed, costs the clinic time they can’t get back before the next appointment walks in.

What to bring, besides the cat

A real headcount, not an estimate you’re hoping holds. “About eight, maybe ten” is the number that turns into five empty slots or three cats left in traps in a parking lot. Trap the number you can actually confirm, and confirm it the morning of, not three days before when two cats you were counting on decided not to show up to their own trap.

What you actually know about each cat, even if it’s not much: rough age, whether it’s pregnant or nursing, whether it’s already ear-tipped (which means already fixed, and bringing an already-fixed cat to a slot meant for one that isn’t is the single most avoidable waste of a surgery day). If you don’t know, say you don’t know. A clinic can work with “unknown,” they can’t work with a wrong guess stated as a fact.

The relationship outlasts the trap day

Clinics remember which rescues show up with the number they said, the paperwork filled out, and cats that match the description. They also remember which ones don’t. The rescues that get first call when a clinic has a cancellation, or an extra slot on short notice, are the ones that have already shown they won’t waste it. That reputation is built trap day by trap day, not asked for once.

Follow up like you mean it. A quick note on how recovery went, or a heads-up if a cat had a complication, costs you two minutes and tells the clinic their work landed somewhere it was actually tracked. Most rescues don’t do this, which is exactly why the ones that do stand out.

Bring a record, not a guess

The rescues that are easiest for a clinic to work with are the ones who show up already knowing which cats in a colony are fixed, which are new, and which one is the skittish one who took three trips to trap last time, because that’s the difference between a real answer and “let me check my notebook” at 7am in a parking lot. That’s the same colony-level history a spreadsheet tends to lose the moment it crosses colony six or a volunteer leaves, and it’s the same thing Purralytics keeps per cat, automatically, free for your first three colonies, so the number you bring to a clinic is one you can actually stand behind.