Nature's Nest Eucalyptus Spray

I purchased Natures Nest Eucalyptus feather spray from Forever Pets in Kimberley. This spray stained my Umbrella Cackatoo's white feathers to pink. Why does this happen / is this supposed to happen. I tried to clean the feathers but efforts unsuccessful. Will the stain goes off or what am i supposed to do.

Nature's Nest Eucalyptus Spray 250ml