Do hens eat henbit?

Henbit, Wayne County, 2007 Beautiful. New spring colors for Kentucky, possibly. But can this be a good thing? Is this fantastic flowering of henbit showing us something about how the soil has been treated recently? Does henbit flourish where other plants succumb to no-till herbicides? Do real chickens eat henbit? I don't know. I do know that henbit seems more prolific than it used to be, even in my urban yard.