《宋史·志·卷三》
天鸡二颗星，在牛宿的西面，一在狗国星的北面，主管奇异的禽乌，一说主管物候时令。
天鸡二星，在牛西，一在狗国北，主异鸟，一曰主候时。
There are two stars as the Celestial Hen in the west of the Cow constellation, one in the north of the Dog Kingdom star, in charge of strange birds and beast, another one in charge of seasonal almanac.