The spectral sensitivities of avian retinal photoreceptors are examined with respect to
microspectrophotometric measurements of single cells, spectrophotometric measurements …

Microspectrophotometric examination of the retinal photoreceptors of the budgerigar (shell
parakeet), Melopsittacus undulatus (Psittaciformes) and the zebra finch, Taeniopygia guttata …

The visual receptors of the passeriform bird Serinuscanaria, the canary, have been
examined microspectrophotometrically and the sequences of the opsins determined. Rods …

The spectral absorption characteristics of the retinal photoreceptors of the blue tit (Parus
caeruleus) and blackbird (Turdus merula) were investigated using microspectrophotometry …

The relative abundance and topographical distribution of retinal cone photoreceptors was
measured in 19 bird species to identify possible correlations between photoreceptor …

The spectral information available to an animal's visual system depends both on the
wavelengths reaching its outer segments and the visual pigments contained within them …

Visual pigments in the chicken and pigeon isolated retina were determined with two
independent methods using selective bleaching and registration of the early receptor …

The spectral sensitivity of 15 species of birds has been measured by recording transretinal
voltages from opened eyecups. With suitable combinations of colored adapting lights, we …

Avian vision probably represents the most highly evolved colour vision in the animal
kingdom. In this article an outline of the complexity of the retina of birds is given followed by …

Since the early 1960s, measurements of the absorbance spectra of both photosensitive and
inert pigments within intact isolated visual receptor cells have been achieved in a great …