Could you post the link please, as I spent some time searching on those sites and could not find anything about what they consider 'humane' chicken keeping, and I'm genuinely curious to see what they consider reasonable.
I did read the article that you linked in a earlier post, and I agree that it sounds reasonable, although I did note that it seems to be directed at sanctuaries and animal rescues, rather than people who are interested in keeping backyard birds, although of course most of the information would still apply. This link, by the way, comes from The Chicken Run Rescue website, which does have a lot of good information about chicken care, and runs classes to teach people about responsible urban chicken keeping. I would quibble a bit about the numbers they use for estimating the costs of chicken keeping, I'd be hard pressed to spend $400 a year on extra greens for my birds, and you can knock a zero off of their estimate on the price of coop construction, but over all the advice seems sensible. I don't have a problem with this, and I think that most of the people on this board agree that some regulations regarding the treatment of chickens is desirable, and that its important that chicken owners educate themselves about how to take proper care of their birds.
That said, I really do think that a number of the organizations who produced this document are interested in banning chicken keeping, or restricting it to the point that it is impossible for chickens to live anywhere other than animal sanctuaries. That is where my objection comes from. I also think that the picture they are painting of urban chicken keeping depends heavily on making it sound like the worst cases are the rule, rather than the sad exception. I don't deny that not all chicken owners, like dog owners, cat owner, fish owners and indeed, parents of human children are responsible, but I think that the answer is education, not adding further restrictions and continuing to ban chickens in areas that have bans.