How old are my eggs?

[goose_eggs]

my friend recently gave me 2 goose eggs unknown age, ive seen alot of movement when candling. anyone know how to find its age?

 

[BirdsBeesTrees]

Post some pictures of you candling the eggs. We can guess by the development.

 

[goose_eggs]

Post some pictures of you candling the eggs. We can guess by the development.

sorry couldn't really get good pictures because i had to take the pics with only one hand

 

[BirdsBeesTrees]

My guess is around day 15 as they look half done.

 

[goose_eggs]

alright. also if it helps, when candling i can see feet kicking around.