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Message: <blockquote data-quote="CAU" data-source="post: 1500216" data-attributes="member: 55324">I agree completely with Stuart and Eduardo, the picture shows a male Sparrowhawk chasing a female Sparrowhawk:-the hand is broad compared with the arm, on a Goshawk the hand is clearly narrower than the arm (with the bulging secondaries creating almost oval shaped wings, compare with the Goshawk in post #14)-the wings look relatively short-the neck looks relatively short-the sides of the throat and the barring on the underside including the underwing coverts is rufous (should be mid-brown or greyish brown on a Goshawk)-the base of the tail is narrowSize:-according to the Collins guide, a male Sparrowhawk is 29-34 cm, a female Sparrowhawk 35-41 cm and a male Goshawk 49-56 cm-an average male Sparrowhawk (31.5 cm) is thus about 80% as long as an average female Sparrowhawk (38 cm)-a large male Sparrowhawk (34 cm) is about 70% as long as a small male Goshawk (49 cm)-the larger bird in the picture is about 80% as long as the male Sparrowhawk, i.e. this is consistent with the average size difference between a male and female Sparrowhawk (as the birds are chasing each other it can be assumed that they are equally distant to the camera)</blockquote>