Lesser Snow Geese mate for life, and they have no trouble finding their partner in the flock. Even if the flock numbers as high as 60,000 and has flown 3,000 miles down from Russia's Wrangel Island, north of the Arctic Circle.
That's approximately the size of the Fraser-Skagit sub-population of migratory birds arriving on the Skagit Delta. They'll spend the rest of the winter winging their way back and forth between there, just an hour from Belltown, and the Fraser River Delta in BC.
Mating pairs and their young will arrive together, and usually hang out together. They'll munch their way through winter, the kids will hook up with a life-partner, and they'll all head back to their breeding grounds with heavy layers of fat and protein so they can wait out the spring thaw so they can all get busy on the next cycle. It's worth a quick trip up I-5 to pay your respects.