A beautiful day with spectacular birds.
A line of Beech on the edge of the St Helen's car park.
Note the very deep, hefty bill.
But the call is the most diagnostic.
Unable to get a recording today so a few examples from xeno-canto.
Parrot Crossbill page on xeno-canto
Parrot Crossbill ( Loxia pytyopsittacus )
British Birds Article from the early sixties
a paper from the 1980's