At least a half-dozen hummingbirds, fledglings and adults, have staked out the yard. A batch of dragonflies have claimed it, as well. Show-offs, every one of them, and belligerent. Stand out on the back deck and you’re in the middle of ongoing 1918 dogfights. All we lack at McQuinn Aerodrome is Snoopy and the Red Baron quaffing root beer.