The breeds name is Barnevelder. Named after a place where the breed is developed in the Netherlands about 10 miles from where I live.
Sounds like broody. She must have thought you want her to nest right there.
Are you sure you want her to hatch chicks now, in late autumn? Don’t let her sit there if the place is a not safe at night. If its okay safety-wise for a broody but not for chicks you have a few options:
1. Move her now to a good spot with the risk you stop her broodiness doing so.
2. Move her a few days before the chicks hatch. Little chance she leaves the new nest when the chicks start to peep in the egg. Make a plan (incubator) if she stops being broody.
3. Make a safe enclosure where the broody sits , during the hatching days (panels covered with hwc). After the hatch you can move her with the chicks to a better spot.