| the retina of tyrant flycatchers: topographic organization of neuronal density and size in the ganglion cell layer of the great kiskadee pitangus sulphuratus and the rusty margined flycatcher myiozetetes cayanensis (aves: tyrannidae). | tyrant flycatchers comprise the largest group of passerine birds of the neotropical region but their retinal organization is unknown. the great kiskadee, pitangus sulphuratus, is categorized as a supreme generalist and utilizes a variety of foraging strategies. the rusty margined flycatcher, myiozetetes cayanensis, is partially frugivorous and captures insects in the air. using retinal wholemounts, we described the topographic distribution of density and size of neurons lying in the retinal gang ... | 2006 | 16567928 |