Zelfbenoemd vogelfluisteraar of zieke Sperwer Accipiter nisus?

Based on his experience as falconer and veterinarian, the author suggests that the extreme ’tameness’ of a Sparrowhawk, after having subdued and partly eaten a Jackdaw Corvus monedula (cf. De Takkeling 12: 98, 147-149), may have been potentiated by hypoglycaemia (following undernourishment). The fluffed plumage, lethargy, enlarged pupils and slightly drooping eye-lid are signs of poor condition and a lowered blood glucose level.