No, same discoloration in the beak. I'm out of town, but will take a picture on Monday when I get back. I'm also going to deworm her on Monday too. I'll give your experiment a try too.
My mallard hen is losing color in her beak. She is a cross with a Cayuga, and is about 8 years old. Her beak has always been black, but recently the tip has been losing color. Is this something that happens with age, or should I be worried? She is eating, drinking, and appears to be normal in...