I agree! I'm trying to develop that kind of flock also, along with being naturally healthy, great layers and natural mothering traits. The power goes out here for no reason at all most of the time, but more often during storms and can stay out for over 2 wks. Where does that leave a person right when spring storms and high winds hit in March? That leaves someone who better have an alternative to incubators...that would be me. No matter how limiting broody hen hatches are as to size of hatch, they still have a better hatch rate than I could ever achieve, the chicks are healthier and more vigorous and develop immunities naturally and I never have to worry about keeping them warm enough with the power being an iffy thing.
For me, the true meaning of a heritage breed is one that is more like a land race breed....very self sustaining, needing only minimal managing of natural rhythms of production and of health. That's my goal. Great laying is a breeding goal also, but not like most people count production....I'd like hens that lay exceptionally well when they are not brooding a family once a year.
Most people wouldn't consider that exceptional laying production, but I feel differently....producing and rearing healthy chicks IS production, but an even more important type than yearly egg counts being elevated....such hens are producing meat and replacement hens for a season, then returning to exceptional lay right afterwards. That, to me, is the height of being an exceptional layer...she's one that can reproduce her own kind, rear it to independence, and then return to the business of laying. A typical "great" layer ideal is a chicken that never stops laying to perform those functions, which leaves her pretty much an end product unless someone uses an incubator to reproduce her and then does the job of a mother in a brooder. I don't consider that sustainable, thus rendering her less than ideal as a "great" layer.
Developing my own land race is exactly what I am trying to do with my new project.
The traits I looked for in selecting my pure breeds to cross are, in order:
1) Broodiness (hatching and brooding is messy work for us humans)
2) Foraging skill (I do feed, but not In feeders every thing is scattered about for them to hunt up)
3) Predator avoidance (I lost 3 of 80 juvenile birds ( no adults in the flock) 1 to a hawk and 2 to a dog. That is all it took for them to learn and now they hide at any sign of trouble)
4) Docility
Size only factored in slightly since I want them for making rich broth more than meat.
The breeds I selected are... Dark Cornish and Cubalaya.
I hope to produce an active flock with all the qualities above, smaller than most would like but suitable for my goals.
From the crosses I will select for their ability to thrive and produce under my program.
In my mind, chickens can produce more than meat and eggs, they can produce work. Mine are currently tasked with incorporating our daily production of horse manure into a huge pile of wood chips that I had delivered. They are doing a fine job of it too.