Abstract Lloyd, P., Craig, A.J.F.K., Hulley, P.E., Essop, M.F., Bloomer, P. & Crowe, T.M. 1997. Ecology and genetics of hybrid zones in the southern African Pycnonotus bulbul species complex. Ostrich 68 (2–4): 90–96. The closely related Blackeyed Bulbul Pycnonotus barbatus, Cape Bulbul P. capensis a...
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