Right angle: An "angle" of 90-degrees --> (L);
"angle" made by the meeting of two straight lines
perpendicular to each other.

Is this not where the bird is perched on both the
chip and in the picture?

Would the hot stamp (chip) have suggested anything
less without the "right angle" -- or does the hot
stamp come close to where the bird is perched
(picture) by incorporating the "angle" (step) in the field?"

JB