Comparative anatomical and histological features of the kidney in Harrier (Circus aueroginosus), Chicken (Gallus domesticus) and Mallard duck (Anas platyrhynchos: Dhyaa, Ab.Abood; Ali, F. Reshag; Azhar, S. K. and Myson, A. Ahmed. Iraqi J. Vet. Med. 2014;38(1):107-113. doi:10.30539/iraqijvm.v38i1.262