Drawing

If - as I hope - the how-to tricks with ellipses don't work for you either, there is no other way of drawing a sparrow or an eagle than to draw it ad infinitum, until the bushes on our paper are fuller of birds than any bushes ever were, and you know sparrow and eagle inside out, having been them yourself.
"The Zen of Seeing: Seeing/Drawing as Meditation" by Frederick Franck