The color of the chick does NOT determine the color of the feathering of the mature bird. They do look a lot like Australorps, or Jersey Giant, or a few other breeds. It sounds like the OP got their answer and they are BSL. The don't have the hackle coloring that was described by another post until they feather out. White Cochins are actually grey when they have their down and then grow pure white feathers. The best way to figure out what you might have is to go back to the source of where the chicks came from (hatchery, breeder) if there is no positive answer, you should be able to narrow it down until you find at least a couple of strong possibilities. If you don't have that information, many hatcheries post pictures of what the chicks of the breed look like too, but there can be great variation in chicks' appearance. For instance, I got three Dark Cornish males last month. I could easily distinguish 2 of them, but the 3rd eluded me because its markings were way different, instead of having a brownish chipmunky pattern, it is yellow with brown and black spots and striped running back from the top of its head and down its back. It was very weird, but when the hard feathers started coming, I could see it was clearly the 3rd Cornish. So, that goes to show, you just can't really tell with chicks.
Feathersite also has many pictures of chicks on their chicks only pages.
I hope this helps.
Feathersite also has many pictures of chicks on their chicks only pages.
I hope this helps.
