Also is it necessary to do a re-checkup? To the clinic I've never been to I was just planning to do a blood test only for both. How long does it take for you to get the results on the blood?
We have slow service here, it takes quite a few days for bloodwork. I guess if they have their own lab or are in a bigger city you could get it faster.
As far as the re-check, maybe find out what they will do. If it is just a visual exam, well, you know your bird better than anyone. My dog (for example) goes back every 2 weeks and they do bloodwork every 2 weeks so I feel that it's worth it. Even though it's costing over $400 per visit.
I don't always take birds back for re-checks. I know I should be saying "always follow your vet's advice" but honestly, it's hard on them to go to the vet. Mine are smaller birds - they don't handle stress well.