This image was captured just before they were upside down. You can see the lead bird setting up for this.
These images ( numbers 4226 through 4229 ) have been cropped so you can better see what the Red-tailed Hawks were doing. The images show the sequence as it happened.
Please email me off list if you can shed some light on this flight behavior.
images and story © 2009 Peter Manship all rights reserved