The Bobolinks are back from South America, and they're setting up shop in one of the, alas, few places left for them to breed and raise their young: large expanses of unhayed meadows. The blackbird-relatives are listed as a Species of Special Concern in Connecticut, and just about everywhere else in the Northeast where they're still found, their populations have plummeted. Thankfully, they thrive at the nearby Thomas Miner Nature Preserve and Wildlife Sanctuary, with its 20-plus acres of unmowed grasslands, and when I visited today, the stunning guys were putting on a show for the ladies. The display featured lots of loud, delightfully musical singing, and an aerial ballet. I hope potential mates were impressed. I certainly was, even though the meadow pathways were sodden and I wound up with cold, wet feet.