Winter wrens are uncommon enough in our urban NW DC neigborhood; they are
even rarer inside people's houses!  a banging on the living-room windows a
few mornings ago early turned out be a winter wren trying to get out.

all the windows and doors were closed; the wren either flew in the previous
day and overnighted (like overwintering, I suppose, but much shorter)
without anyone noticing, or fell down the (flueless) chimney.  neither
seems very likely.  the episode ended happily when the front door was
opened and the wren flew out without incident.

has anyone had birds fly/drop in the house through the chimney?