Birds rely on eyes with high acuity and brilliant colour vision for most of their behaviours, including foraging, mate choice and flight control. Bird eyes have a number of pecularities the functions och which are not fully understood, such as double cones in addition to four spectral types of single cones, coloured oil droplets in all cones types, the pecten and multifocal lenses. Although bird eyes share the samebasic features, specific adaptations to the ecology have not been studied in many groups.
We are interested in a better understanding of
1. the bird cone mosaic and ganglion cell density maps and their relationship to behavioural spatial resolution of chromatic and achromatic stimuli
2. adaptations in the eyes of nocturnal birds such as owls and nightjars
3. the sensitivity, spatial resolution, pupil shape and steady state pupil dynamics in relation to the ecological needs of different species