I know this is a very old thread, but I just joined this forum because I was trying to figure out exactly what my chickens are... they are called Ponedoras... and we´ve been keeping this kind of chickens for 12 years here in very far south Mexico. (well not all the same birds, we´ve had some turnover :)
But Costa Rica Art wasn´t duped, or I am too ;) They really ARE referred to as a "breed" of chicken here by the locals and by the dealers (feed stores) who sell the chicks. Because they so very, very rarely - if ever - go into a broody period. Every so often you´ll have one that does, but most of them just... don´t... for years. They produce eggs on and on and on, and pretty much daily. The Ponedoras are very friendly and funny, people oriented, just nice birds and real easy to keep. The stores here sell other birds too, including some lazy white birds I think are cornish. Double Pechuga they call them, double breasted, and they are amazing growers. Specialty birds are not sold here in this small town... I´d love to raise some White Silkies but that is another story.
Anyway, most of the Ponedoras here are red or light red like Costa Rica Art´s birds, but some of the best we´ve had are Ponedora chicks who ended up white or dark feathered. In the chick cages there are probably 95% red ones, and we got some of the dark and white ones for fun. Currently I´ve have a few of those dark and white ones for close to 4 years and they´ve never tried to go sitting once, so they are true to the "breed." We´ve hatched some chicks.... from our rooster of a different variety (because I have yet to find a feed store that sells a "Ponadora Male") and we have mixed chicks from those matings. The rooster babies make good meat birds and the females go as meat birds too after they start getting too broody. But I really would like to find out what Breed if any, that this really is... so we could find a rooster that would make us more of these great egg layers. I have an incubator and am prepared :)
These are my Mexican Ponadoras. I´m going to check out the Sexlinks breed, Danischi, thanks for giving me a path to investigate! Anybody else has any comments or ideas I´d be thrilled to hear.