Birders show up at Freezeout Lake in Northern Montana, and reflect on annual migration of Snow Geese to breeding grounds in the North. Terra, an on-line video podcasting site, features sights and sounds of the migration. An estimated 300,000 Snow Geese and 10,000 Tundra Swans make the trip, and stop over at Freezeout Lake (a primary staging area) at the beginning of March. The Terra Podcast, “White Wings Over Montana,” is available above. For more on Snow Goose (Chen caerulescens), please check out the Cornell Lab of Ornithology.