Akau Hena, S. , Legbo Sonfada, M. , Bello, A. , Danmaigoro, A. and Kayode Tanimomo, B. 2012. Comparative morphologic and morphometric studies on the lower respiratory tract of adult Japanese quail (coturnix japonica) and pigeon (columbia livia). Scientific Journal of Biological Sciences. 1, 2 (Aug. 2012), 37-42.