With the front open, access by fledglings is easily facilitated. Yet, the worms remain well protected from the weather. The food remains alive and nutritious on cold winter days with no worries about frozen worms. The unique 3-part rear window allows for opening with a screen in place for additional cooling and ventilation while preventing undesired birds from entering. A second screen unit interchanges with the front window for a full measure of summer ventilation if the feeder is used in the closed mode.
Additional ventilation is derived from opening the ventilation ports in the side peaks of the roof.
A generous, over-hanging roof minimizes rain soaking or snow burying the worms. Entirely hand-crafted of finished cedar. Your bluebirds still get the nutrition you want them to have. Comes with window-identifying tapes for your birds' safety.