Mini apple yard duck coughing up stones

[Blossomblue]

Hello All,
Hope you can help me,
One of my 6 month old ducks, has recently started laying. A couple of days ago she regurgitated some quite large stones.
She free ranges, is on a layer feed with a good calcium content and has grit.
I went and got some oyster shell grit in case she was looking for more calcium. But she has done it again tonight, is this normal?

 

[sourland]

Do you know the source of the stones ? If it is possible, I would exclude her from the area where she is getting them. Depending upon size I worry about her becoming impacted.

 

[Fuchsia]

I don’t knowMy ducks have never done that.

@Isaac 0

 

[HollowOfWisps]

Does she appear to be any pain or acting out of the ordinary besides the vomiting? I almost wonder if it's not Bike Duct Stones...

 

[Blossomblue]

Do you know the source of the stones ? If it is possible, I would exclude her from the area where she is getting them. Depending upon size I worry about her becoming impacted.

She does a lot of beak digging all around the garden, would not be able to stop her!

 

[Magnolia Ducks]

Can we see pictures of the stones?

 

[Blossomblue]

Does she appear to be any pain or acting out of the ordinary besides the vomiting? I almost wonder if it's not Bike Duct Stones...

No pain, eating well

 

[Blossomblue]

Can we see pictures of the stones?

Sorry hubby binned them already!
The largest ones was about 1/2 inch.

 

[Phi-Phi]

Interesting! I don’t know much about ducks but I found this article that talks about the stones (Gastroliths) and of the stone become smooth pebbles then the bird will vomit them out. Perhaps the grit you are offering is too smooth? Or maybe the duck is ingesting too many of them so there are many rounded pebbles in her gizzard that she is ridding of? I also found another article about feeding a proper diet to ducks since I had no idea you could feed waterfowl a chicken diet haha. You may already know this but the right diet depends on whether your duck is a laying duck or a meat duck. It also mentions that oyster shells are not necessary if the egg shell is normal. Here is the article: https://www.forthebirdsdvm.com/pages/care-and-feeding-of-pet-ducks
I hope this helps!!!

 

[Blossomblue]

Interesting! I don’t know much about ducks but I found this article that talks about the stones (Gastroliths) and of the stone become smooth pebbles then the bird will vomit them out. Perhaps the grit you are offering is too smooth? Or maybe the duck is ingesting too many of them so there are many rounded pebbles in her gizzard that she is ridding of? I also found another article about feeding a proper diet to ducks since I had no idea you could feed waterfowl a chicken diet haha. You may already know this but the right diet depends on whether your duck is a laying duck or a meat duck. It also mentions that oyster shells are not necessary if the egg shell is normal. Here is the article: https://www.forthebirdsdvm.com/pages/care-and-feeding-of-pet-ducks
I hope this helps!!!

Thanks I'll have a read