I'll try to copy links for you FW.
We basically asked the same question to CurlewCountry because we've been told that the curlew used to nest just a field away from us and we would be happy to manage our land and activities around them.
Unfortunately it would seem that our land wouldn't be ideal for them.
A few things that we found out .....
They seem to prefer fields that have been shut off from stock.
They like to nest in the middle of open fields and not near to woodland (rules us out really) because they feel unsafe near woods/hedges as it gives shelter to predators.
They like a sward of 20 to 30cm. Enough to give cover but low enough for them to look over the top for predators.
My daughter spotted the curlew again last night at about 9pm. She walked along the road and they flew right over her head and landed to feed in the opposite field. Not sure why we keep seeing 2 flying and feeding together? Maybe they haven't nested/not completed their clutch/?