Both large windowsill bird feeders are described on this page

A new manufacturer has taken over the production of these popular windowsill bird feeders so we are happy to offer them again. Be certain to verify the window sizes that these feeders can fit.

Windowsill Bird Feeders

• Fits windows up to 39 inches wide.
• Feeder Dimensions: 23.5" width x 12.5" height x 7" depth
• Two side extension panels measure 8.5" width x 13" height.
• Extensions can be shortened to fill any window space larger than the feeder.
• Please see drawing of how these window feeders fit in windows.

Whenever you need to lock your window, you can close and lock up while this feeder is in position but the feeding platform will be closed off also. The see-through plexi-glas back wall of the feeding platform is a reflective mirrored panel (mirrored to the outdoors) which keeps the birds from seeing how close you are inside. The locking lid allows you to fill the feeder from inside your home if you wish. The bowed side of the feeder (shown) is "inside" your room. The other side is open for the birds to enter. The view shown is what you would see from inside your room. The birds see a reflection. Initially, birds may be startled by this reflection but they will soon figure out that it is only a reflection.

Windowsill Bird Feeders

• Fits windows up to 37 inches wide.
• Feeder Dimensions: 21.75" width x 12.75" height x 7.5" depth
• Two side extension panels measure 8.5" width x 13" height. Can be altered to fit.
• Extensions on each side of the feeder fill any window space larger than the feeder.
• Please see drawing of how these window feeders fit in windows.

These windowsill bird feeders can be opened up into your home for filling and cleaning. The removable seed tray is very convenient. You can unlock the sides of these feeders to open them completely. Just like the feeder above, you may close and lock your windows with these feeders in place but the feeding station will be closed off during that time. These feeders are backed with see-through plexi-glas that has a reflective material causing a mirrored reflection towards the outdoors. This allows close up viewing of your wild birds.