For an olive-sided flycatcher, migration can be a marathon. Some of the soot-colored songbirds travel more than 15,000 miles a year, winging their way from South America to Alaska and then back again.
Sea basses, groupers, and temperate basses -- Tunas and mackerels -- Jacks, amberjacks, scad, pompanos, and roosterfishes -- Rockfishes and scorpionfishes ...