Court order stops Derby cycle track work at The Sanctuary nature reserve
Work to build a cycle track at a Derby nature reserve has been stopped following an interim court order issued by the High Court.
The trust said the development would damage the habitat of rare birds.
In a statement the authority said it would respond to the court's decision but would make no further comment.
The council had said the new facility, linked to the new £28m velodrome, would only take up a "slice of the land".
However, Derbyshire Wildlife Trust took the action because it said the new track would result in a decline in wildlife.
There will be a full hearing at the High Court on Monday.
The Sanctuary, which lies close to the Pride Park football stadium, was given the go-ahead by the council in 2003.
Threatened bird species including skylarks and lapwings are visitors to the site, according to conservation managers.