During every migration one warbler typically stands out as the grand champion. Not that it’s a competition, but there’s always that one bird who seems to be everywhere, and more cooperative than most. The race this year was tight, but I’d say the Black-throated Green Warbler took first prize, not that it’s a competition. Previous champions include yellow rumps, magnolias and red starts, but sometimes a bird emerges as kind of a nemesis; a bird who has no interest in being seen or photographed. This year that bird was the Black-and-white Warbler, until the morning I caught her napping in a thicket. I could almost read her mind as she said, Oops, busted!, and quickly went back to work foraging up and down the tree trunks.