Mutual cartwheeling by Sparrowhawks 

At 08.25 G M T on 6th J u n e 1976, at Rostherne Mere, Cheshire, I observed a pair of Sparrowhawks Accipiter nisus soaring over a wood, the male (identified by his much smaller size) above the female. They gained height, soaring and slow wing-flapping, a n d then indulged in steep dives with closed wings. At the end of one dive by the male, the fem


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