1. Larger clear viewing: Our clear window feeder has an attractive house shape with a large viewing area in the middle, great for close up views from any room of visiting birds. Crystal clear plastic design makes bird watching easier. Large nearly 7' entrance fits even large birds like Cardinals, Finch, Bluebirds, Cardinals, Chickadees, Nuthatches, Wrens 2. Squirrel Proof Design – Our bird feeder for window comes with crossbar door stops, and the feeder trays need to be manually extracted, so they won't be easily slipped by squirrels! The higher you can mount it on a window the farther from jump off points (branches, furniture, etc.) the more likely you are to keep the squirrels out 3. 2 Mounting Options – We provide 2 mounting options. Suction cups can be adjusted at any time to change the place, you can also be fixed in one place with adhesives. Strong suction cups and adhesives will extra staying power in inclement weather. Either suction cups or adhesives – your choice 4. Always Keep the Seeds Dry – The drainable tray keeps seeds dry, doesn't rot seeds. Feeders will help busy bird lovers keep a y birding spot for their furry friends without constant upkeep