[yarg]

Throw a compass into the mix and you'll get close enough.

But you like, fall off the grid man.

[hinkley]

Are you trying to square a circle? We don't tolerate that witchcraft around these parts. Now git.

[yarg]

No - you can't square the circle, but you can get the square-root of 2.

Choose a corner and truncate, measure the edge length using a compass, and use that to draw the rest of the owl.

You can do it, but you end up with horizontal and vertical edges that are misaligned with the grid.

And I saw the opportunity to make a bad joke.