They aren't listed on the venues calendar of events and the date isn't listed on Ticketmaster or any other ticketing sites. Strangely, the radio station news article link no longer works;
Fleetwood Mac's Lindsey Buckingham and Christine McVie ...
100.7 WZLX Classic Rock-10 hours ago
Lindsey Buckingham and Christine McVie are ready to take their new Buckingham/McVie record on tour. The duo, two parts of Fleetwood Mac's ...
http://wzlx.cbslocal.com/2017/04/10/...oston-concert/
It's only showing 'Sorry, page not found'.
I get the feeling somebody is trying very hard not to release concert dates.