Deluxe In-House Window Bird Feeder, by Heath. This weather resistant cedar platform bird feeder opens completely into the house and features a removable seed tray for easy cleaning and re-filling of bird seed. Hinge latches which are on both sides of the feeder make it possible to open inside the house while it is still in the window. Mirrored panel made of plexi-glass allows for up-close bird watching and window can be closed and locked while this feeder is in place to maintain a secure home. For use with single-hung or double-hung style windows. Dimensions are 21.865”L x 7.5”W x 13.875”H and its windows up to 47.75 in width via cut to size extension panels. This feeder has 1.25 pound capacity. Made in the USA. See below for quantity discounts.