Sheep used to dominate the Vermont landscape. But these days, it’s kind of rare to drive by a large flock. What happened to Vermont’s sheep?Today on Vermont Edition: It’s the latest in our March series Animal Hour and it’s all about sheep. We begin with local historian Mark Bushnell who tells us all about the sheep boom and bust of the 1800s.Even though there aren’t as many sheep here as there used to be, there’s still a lot of Vermonters out there shearing sheep for their wool, raising lambs for meat, or producing award-winning sheep’s milk cheese. We’ll talk with Mark Rogers, head of the Vermont Sheep and Goat Association, and Amber Reed, a livestock grazing expert in Barnet.