Это правда в большинстве случаев, но не всегда. Вот что нашла: White-feathered chickens with white ear lobes lay white eggs and red-feathered ones with red ear lobes lay brown eggs (this may not apply to all breeds). And besides that, there are certain chickens that even lay speckled eggs and blue eggs. But when you get down to the egg, nutritionally there is no difference -- it's all just in the looks.