Spotted them from my desk, quietly opened the balcony door, and popped them at around 25 yards with the Marauder.
Guys, this is the PERFECT gun for the back yard, esp. in .177. Very quiet, yet suitably powerful. Not that I need 18 FPE to pop sparrows @ 25 yds., but I'm ready in case of a raccoon, squirrel, rabbit, etc.