Bird Feeder 38 mm XL

cults3d

Mount a refillable bird feeder onto a standard 38 mm diameter PET bottle, such as those used for Cappy or milk. These bottles can hold up to 5 liters (1 gallon) and feature a suitable thread size. This modified design is ideal for larger birds like the spotted woodpecker, which often struggle to comfortably perch on smaller feeders. However, it still meets the needs of even the smallest bird species.