I bought these hens about five years ago (the top one is deceased). They were labeled as Black Sexlinks when I bought them, but don't seem to show the characteristic tawny feathering on the neck. Do all Black Sexlinks have that feature? Black Sexlinks don't go broody, as I read, but the picture of the bottom hen has gone broody several times (including in this picture). Also, note the dark eyes of the top hen.