I've used this for years. This is a great description. =)
You can actually use a similar method to determine how long until an egg hatches (and also its viability). I've done it with endangered shorebird eggs! (You need to be permitted to that though, unlike with chicken eggs.
)
You can actually use a similar method to determine how long until an egg hatches (and also its viability). I've done it with endangered shorebird eggs! (You need to be permitted to that though, unlike with chicken eggs.
)