As promised! The following 7 birds all had a metal BTO ring on the left leg, with a bright orange ring above, and on the right leg a dull orange ring with black lettering:
16
19
25
34
36
60
74
There were others which we were unable to read (black lettering not the easiest on a dull background).
Another bird had no BTO ring, but on the left leg a black ring over a white ring.
There were 2 further birds with just BTO rings.
