Window hummingbird feeder by Wild Birds Unlimited has a 4 oz capacity for nectar, 2 feeding ports, and a detachable ant-moat that keeps ants and other crawling insects from the nectar. This made-in-USA feeder is like new. Never used, all of the window mounting suction cups and hardware are in original unopened bag. Instructions included. It can be mounted either on a window or a deck, for best viewing.