window bird feeders suction cup

Can anyone recommend a good suction cup window bird feeder?

I tried a couple, but have trouble hitting in cold weather were real. Has anyone had any luck with / to attract birds with these?

# # Http: / / www.birds-n-garden.com/window_bird_feeders.html

New Suction Cup Bird Feeder That Attaches To Any Window $9.50

ABC Products Giant Window Hook Suction Cup (Hang Hummingbird Feeder, Bird Houses & etc) $7.47 Giant Window Hook holds small birdfeeders, windchimes ~~ Also holds hummingbird feeders, plants and more ~~ Press suction cup firmly on clean, smooth surface ~~ Hang items on the hook – View birds up close ~~ Holds up to 3 lbs – Made of heavy duty acrylic…

Aspects Replacement Window Suction Cup $3.25 Features: Fits all Aspects window feeders. One replacement cup only….