One would expect that the self-service machines - or at least one of them - would also be loaded with Birds 4: I await confirmation.
Meanwhile, an early release of the Birds 4 pictorials has been reported. A first class faststamp showing an arctic tern has been seen on an envelope from Paisley (id 007859) dated 12th September 2011. The session number was 26868. (Thanks to John McCallum for this news: follow John's Postal Mechanisation updates on http://sites.google.com/site/pmechuk/
Does anybody have news of P and G machines in Post Offices producing the new 40g label as shown above?? First Day Cover producers need them for the full set!