My Kembe only became aggressive towards some other dogs when she was attacked by a large dog that was not leashed. However, there are some dogs that she does like both big and small and also some dogs that she doesn’t like . She doesn’t back down - no matter the size if she dislikes the dog.
As for squirrels and rabbits - she is focused & relentless - goes into STEALTH MODE! She has killed 2 squirrels while on leash - she is FAST.
I found out many years ago that my Basenji is allergic to turkey. She broke out in big welts and hive all over her body . I brought her to the vet because she had a slight temperature and she scratched herself until she bled. Vet gave her an antihistamine. Needless to say, I do NOT feed her turkey.
Last summer she was stung by a bee in the face. Her face blew up and was swollen. I gave her Benadryl and watched her carefully - swelling went down.