Antibiotics safe for goose with dog bite?

  I researched for 3 hours, and seems to be hard to find  info on safe antibiotics for geese wounded. (Fri. even. Only have a 'country vet' and she is closed.) I can get to a Tractor Supply this evening.

  My 3 month old Shetland Gandar stuck his head thru the 2x4 dog fence and the terriers bit him on the head .I saw  something  going  on and tore outside an got him free. He went off and took a swim in the just cleaned pool. I went out and inspected an wiped the wounds with baby wipes(grandsons), and  put triple antibiotic on the 3 wounds. Small puncture, a scrape and a longer scrape on neck. There was only a little blood when I rescued him... He was a bit stressed and sat good for me. But then he was up and hanging with his flockmates,acting  normal, grazing etc.

   I dont' want to over doctor and give him toxic doses....I am inclined to watch him and  just put antibiotic creme on it  unless it starts to look bad.(I got accidently bit  by the  terrors once breaking up a fight and treated it  similarily.....)

  My son is bringing me  some tetracycline powder, but then I read it probably isn't the best thing....I also read that penicillian G shouldn't be used  in  some birds...

   Anyone have experience with bites and these  drugs?

Thanks, I am watching it. 20 years ago we had a pet goose attacked by our lab and took him to an avian vet to sew his neck up, the vet asked permission to  take pics to  put in a book as it was a common injury in  wild geese  from dogs..... He just sewed him back up and we took him home. No  drugs from  recall. He recovered fine.  My son did bring home some Tetracycline powder, but after reading not sure it is the right  drug for wounds....
 

 He seems to be healing fine. I  put 3 way antibiotic creme on him  for 3 days and  make sure he has clean water and there seems to be little  if any  swelling and he is acting normal...I am watching as he is a very friendly  little Shetland Gander and I don't' want to  lose him...(from Holderreads, one of 7 I have).