Hi, thanks for veryone's help. i am now having a really hard time finding a source to buy ivermectin for my chicken. any online resource suggestions would be greatly appreciated. and, my local animal control just told me that a bird will not exhibit signs of illness until they are very very ill and putting her down may be the best thing i can do for her. thoughts? she has been sick for about 12 days and i will have to order ivermectin in hopes it will treat her sickness.