The retina of a Northern Goshawk Accipiter gentilis was investigated in a whole-mount preparation using Nissl's staining method. The total number of retinal ganglion cells (RGCs) was 4,427.2×103. The visual streak extended horizontally across the retina with an RGC density of 10.3–22.8×103 cells/mm2. This area included two foveal areas in central and temporal locations with densities of 22.8×103 and 22.7×103 cells/mm2, respectively. The localization of RGCs larger than 10 µm in diameter was observed in the periphery of the dorsal, nasal, and temporal retina. These results may reflect adaptation of the goshawk's eye to its ecological environment and behavior.