Here two naturalists are comparing a Cooper’s hawk (on left) to a Sharp Shinned hawk (on right)
JI9S7463.jpg 2005:09:18 10:33:49 Focal length: 100.0 mm Lens: 35.0 to 350.0 mm 1/500 sec, f/7.1 Mode: Av ISO: 320 AF mode: AI Servo AF White balance: Auto Flash: Off File size: 114KB Image size: 699 x 466