Stone Curlew?

Hi all, Out on Salisbury Plain today, and this distant bird blew by me at about 60mph. Wasn't sure what it was while I was snapping away, but now on the screen it looks like it might be a stone curlew...
Stone-curlew

Here you are a picture with a Stone-curlew. It has been tahen under an olive tree in La Mancha, Spain I hope you enjoy with it
Adult stone-curlew?

It is possible to distinguish between an adult or juvenile one besides to its sex from this pic? Thanks to anyone trying to help me.
Stone Curlews (the ones from Springwatch)

Taken at Minsmere yesterday. Very distant and well camouflaged, but their one chick has survived.
Stone-curlew at Weeting Heath NNR

This is THE site for this rare bird!