Adult male Eurasian Sparrowhawks have bluish grey upperparts (wings) and an orange-barred chest and belly.
Adult females have greyish-brown upperparts and have a greyish-barred chest and belly and white spots on their backs.
Juveniles have brown upperparts and have a brown-barred chest and belly.
Females are up to 25% larger and 50% heavier than males – one of the largest differences between the sexes in any bird species.
Males have thin legs.
Long nails are characterictic for Eurasian Sparrowhawks (visible on the 2nd photo).
Males tend to take smaller birds like tits, finches and sparrows.
Females prefer thrushes and starlings.

1st & 2nd photo: A 2nd year male. Oostvaardersplassen, The Netherlands, 1 March 2012
3rd photo: A juvenile. Oostvaardersplassen, The Netherlands, 1 March 2012
4th & 5th photo: A juvenile. Weversinlaag, Zierikzee, The Netherlands, 13 January 2021