Projective geometry
Perspective projection
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handel
When an object is drawn, using the traditional procedure for creating perspectives - ie: picture plane at right angles to centre of vision, the image gets progressively larger the further the object is from CoV.

This is against all common sense. Objects are supposed to get smaller as they get further away!
Just suppose though, that this is true and the construction is valid, we could not possibly discern it. Just try reading a line of text when you are concentrating on the one above.
Hawks however have a reputed 270 degree angle of vision.
Is it possible that they use this phenomenon to magnify their prey when they stoop and not rely on telescopic vision? If I look through a pair of binoculars I would not be safe moving around, I would bump into things. And raptores do it travelling at 90mph in 3 dimensional space!
However, if they looked straight ahead but “took in the view” of their prey at, to them a constant optimum angle, they would need to fly in a curve to maintain it.
I am informed by falconers that hawks do indeed stoop in a curve and it has been established that this curve is a logarithmic spiral.
Could this be a reason?
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