This is auction for a set of collars of your choice made from quality 3d printing and is supplied with screws aswell.
see chart fo which set you need or order a mix of collars.
bird box not included pic just for illustration purposes.
Use this as a guide to the bird types you want to attract.
- ID: 25mm
- Blue Tit
- Coal Tit
- Marsh Tit
- ID: 28mm
- Tree sparrow
- House sparrow
- Great tit
- ID: 32mm
- Nut Hatch
- ID: 45mm
- House Martin
- Starling