That Spirit of Flight Competition looks fun, congrats Jay!
Here's a shot of snow goose juvie from this weekend around Green Lake, this fella is a little lost though I've seen about one a year mix it up with the Canada Geese
Last year in the dead of winter the geese and crows were chasing the one snow goose away, this guy though was getting along just fine with everyone...
Plus over the weekend I think there must have been some long V's of sandhill cranes heading south right over Green Lake, you could hear them too, had the feeling of a benevolent air raid, didn't have time for a pic. Kind of wish there was a place not so far from Seattle to see them rest, though it seems like they just barrel over town and keep going. They were following near exactly the flight path for the Nth approach to Seatac.
At about 15 minutes prior to twilight we typically get a gaggle of Canada geese from up Lake Ballinger or Bitter lake fly in to overnight at Green Lake (they head out about an hour after dawn each morning too). When they come in to land they have to move past a grove of Sequoia, they come in fast, in formation, and once they clear the trees they often flip, in flight, air breaking to slow to land. In general because they are so damn ubiquitous I don't find the Canada Geese terribly interesting but when they air break, it is super cool to watch, spinning on axis, doing a 180, then back to horizon. This guy explains it in more detail, seems like it is a move to drop altitude to give a cleaner path to land: