There are a few other things you can try....if and ONLY IF your weather is warm enough, you can remove her from the box and dip her underside in cool water. She will not return to the nest (usually!) when wet so will have to spend time preening herself dry again, taking her mind off the sitting and physically preventing her from doing so.
An ice pack slipped under her, wrapped to ensure she doesn't get frost burn, can help. A broody is encouraged by the warm, cosy feel of the nest and eggs beneath her and a coldpack can be very off-putting.
I have broken broodies in a cardboard box before now....a large one, mind you! No bedding, no nesting material, nothing...just food and water. I did it once with the hen alone and once by putting a rather bossy non-broody companion hen with her....bossy enough to keep her 'on her toes' but not bossy enough to bully. I put the box in my kitchen for a few days so that the 'traffic' of people coming and going kept their mind off brooding by basically not giving them the peace and quiet they are after or the ability to nest.
Be warned though, some girls are VERY persistent!!
An ice pack slipped under her, wrapped to ensure she doesn't get frost burn, can help. A broody is encouraged by the warm, cosy feel of the nest and eggs beneath her and a coldpack can be very off-putting.
I have broken broodies in a cardboard box before now....a large one, mind you! No bedding, no nesting material, nothing...just food and water. I did it once with the hen alone and once by putting a rather bossy non-broody companion hen with her....bossy enough to keep her 'on her toes' but not bossy enough to bully. I put the box in my kitchen for a few days so that the 'traffic' of people coming and going kept their mind off brooding by basically not giving them the peace and quiet they are after or the ability to nest.
Be warned though, some girls are VERY persistent!!