My fruit fly trap is finally working efficiently! First, I tried a rolled paper funnel in a wine bottle with cider vinegar in the bottom but the flies still preferred the fruit on the windowsill. I rolled the funnel narrower and cut the funnel opening larger but although lots more entered, some were able to fly back out. The wine bottle opening was too small to fit a piece of cantaloupe and that appears to be their favorite food so I tried a mason jar with a funnel. The mason jar was too short, placing the funnel just above the bait and again, many flew out. I finally decided on a tall glass with a funnel cut from an envelope. The funnel is flatter and has a smaller opening at the point.  You can see the fruit flies inside the glass in the last picture. (for original post and links, see “Thank You” post from Sep 25th)