Morphological Comparative Study of Proventriculus and Gizzard Between Bronze Fallow Cockatiel and White Eared Bulbul

The current result aimed to investigate the comparative morphological note of gizzard and proventriculus between two bird (white eared bulbul and bronze fallow cockatiel) according to their food type. In this study used (10 sample) from each bird. The proventriculus of bulbul was spindle tubular in shape- pink in color, the internal surface have shallow longitudinal fold. While in cockatiel the proventriculus was red in color with the spindle shape, the internal surface there was conical projection. The weight of proventriculus of bulbul was more the than that in cockatiel while the length of proventriculus in cockatiel more than that in bulbul. The gizzard of bulbul appear ben elongated in shape surrounding with fatty tissue that appear brown in color, the inner surface have longitudinal fold. While in cockatiel the gizzard was round muscular in shape pink in color and the inner surface was clear without any longitudinal fold.