Don't trim beaks with any form of cutters!
Even the part that looks opaque has receptors in it. If you have to adjust the beak do it slowly, a mm at a time and use a file!
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1166494/
https://www.sciencedirect.com/science/article/abs/pii/S0168159111003285
Even the part that looks opaque has receptors in it. If you have to adjust the beak do it slowly, a mm at a time and use a file!
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1166494/
https://www.sciencedirect.com/science/article/abs/pii/S0168159111003285