ANGLERS DEDICATED to chasing silver 24-7-365 view the 12-month calendar differently than most; we see it in terms of fish migration. In the Northern Hemisphere, the year begins with spring freshet and the arrival of salmon. In the Atlantic, this means Salmo salar, the regal Atlantic salmon. In the Pacific, it means chinook (king salmon), the big daddy of all sea-runs. Following the kings come coho, chum, pink and sockeye salmon — and, with much anticipation, steelhead, our keystone species. For Oncorhynchus mykiss, summer is only the beginning of a magnificent, nearly year-long parade. Additionally, Arctic char offer a unique, top-of-the-world adventure in late summer, and there is ample incentive for anadromous fish lovers to visit the austral extremes in January, February and March — giant sea trout in Tierra del Fuego, massive chrome-plated kings in Chilean Patagonia, and spectacular Atlantic steelhead in the Argentine state of Santa Cruz. This is all to say: On any given day of the year, somewhere on the planet, there is a big, bright, sea-run fish, charged with the ocean’s relentless energy, pushing into a river, ready and willing to ambush a well-presented fly. All we need to do is get there and make the cast!