It is usually considered impolite to watch others eat. But when it's called ornithology instead of curiosity, it's perfectly fine. Tools Design has created a practical bird feeder for Eva Solo, featuring a weatherproof container made of real glass that allows for precise observation of pecking garden birds. The feeding hole is large enough for a bird's head to fit through, and the glass rim is wide enough for the small bird feet to sit securely. Tools Design has also made the attachment of the feeder for overwintering garden birds practical: with a strong adhesive strip, Tools Design ensures a secure attachment to the window, onto which the glass feeder can be loosely hung like a round coat hook. Additionally, this makes it easy to remove the bird feeder for window cleaning and to reposition it if necessary. The glass container of the Eva Solo window feeder can also go through the dishwasher regularly, which is advisable for hygienic reasons.