Eighty percent of the world’s Emperor Goose population breeds on a 10-mile-wide strip that runs from Kongiganak, up the coast of the Yukon Kuskokwim Delta, to Hooper Bay. This year, for the first time in 30 years, federal managers have opened a subsistence hunt for the birds. The geese haven’t migrated to the Delta yet, and the feds are trying to encourage conservative hunting of the vulnerable species before they arrive.