Here are some threads that might help you. They're all about chickens but may help.
egg bound hen and get the items needed
such as putting several eye droppers of olive oil any kind of oil
go to the vent and on the left side stick the eye dropper in and release oil
there was one really good one on here yesterday
it probably is on pg 2 or 3
as it was just listed by byc member on how she accomplisewd the egg bound hen releasing the egg
Do the same thing on right side
do this at least 4 times
to get oil in the vent to help the hen release the egg
also after oil treatment set her for a couple of hrs in the kitchen sink in warm water and help her body to release the egg
it may take several hrs and keep water warm not cold
any questions email me
More advice from Glenda:
https://www.backyardchickens.com/forum/viewtopic.php?id=186978