Chinese goose nose bump

[Messy]

We have an adult Chinese brown goose. We got him as a full grown adult. He has a large nose bump. We were able to get three companions for him (his died a while back) at an auction. They are colored identical but they do not have a bump on their noses (yet). Does this mean they are young? They are nearly his size, but a tad smaller. How old are Chinese geese when they develop the large bump? I cannot find any online photos of a "teenage" Chinese goose. Someone else told us that the lack of bump meant they were girls but his companion was supposed to have been a girl and she had a large bump. So, we are confused LOL! He is happy and that is all that matters, but I do not understand why they do not have a protruding nose bump.

 

[Kevin565]

They could just be young geese. It took mine forever to get their's in.

 

[Messy]

Ok, good! Thank you for answering! We have never raised this type of goose from chickhood so we were feeling pretty confused. But we were not confused enough to not get them LOL I am so happy we did. Our goose is thrilled.
Their bodies are a tad smaller than his as well. So, we thought perhaps they were younger but were not sure if they got nose bumps early on or not

 

[Going Bhonkers]

And, you're right, both females & males get the bump (called a "knob")