[DanBC]

> IMHO they've also got a much nicer colour.

The colour is just an additive put in chicken feed. You can get colour charts for the egg colours.

[ricksplat]

Have you got a source for that? First result on google indicates otherwise http://www.backyardchickens.com/a/egg-color-chart-find-out-w...

[DanBC]

Ah, those are for the shell. I'm talking about the yolk.

http://blog.chickenwaterer.com/2013/03/influencing-egg-yolk-...

The shell appears to be genetic: http://msue.anr.msu.edu/news/why_are_chicken_eggs_different_...

[ricksplat]

Yeah I wasn't talking about that. Was talking about those creepy paper-white eggs you get stateside.