One of the problems in my view is there is a lot more to a breed than the physical characteristics that most breeders concentrate on. The Marans for example originally laid between 100 and 150 eggs a year. Some now lay closer to 200 to 250 eggs a year. This has an impact on their behavior as well as their biology. A chicken hatched and raised by a free ranging broody is going to learn different behaviours to one hatched in an incubator and raised in a cage. The French Marans were farm birds and according to the French, made good foragers. In order to preserve the breed characteristics rather than just some approximation of looks they need at least similar keeping conditions.Yes, I have the same issue but didn’t really express it as well as you when I was talking about the ‘French standard’ bird in the UK. It’s something I could have stressed on my comment about ‘poorly bred’ vs ‘impure’ too.
One thing I like about the English type is that the people who breed them often put the standard first, what I don’t like is that it isn’t the same standard as the original marans chooks.
I’m glad you brought it up actually because I don’t think any breed has suffered as poorly from this effect as the marans. Leghorns maybe are another example where drive for profit took away from the original traits of the breed.