For many animals color vision is critical to make sense of their environment. Whether it's choosing the ripest fruit or identifying a potential mate, the perception of color is vital for the execution of these complex behaviors. How colors are processed in the central nervous system of di- and trichromatic vertebrate species has been topic of considerable research over the last decades. In contrast, the neuronal circuits supporting color vision in tetrachromatic vertebrates, such as birds, remain less well understood. Using newly developed in vivo 2-photon calcium imaging methodology and high-density, multi-channel Neuropixels silicon probes, we aim to investigate the neuronal representation of color in the visual Wulst of pigeons, the functional homologue of the mammalian primary visual cortex. Experiments in awake pigeons demonstrate that neurons in the visual Wulst are selectively tuned to a broad range of wavelengths covering the pigeon’s visual spectrum (~350-700 nm). Response profiles can be broadly classified into three main groups: (1) cells that show an increase in activity in response to spectral stimulation (ON cells), (2) cells that respond with a decrease in activity during stimulation followed by an offset response (Inhibition/OFF cells), and (3) cells that display both ON and OFF responses (ON/OFF cells). This project aims to advance our knowledge of visual processing beyond standard model organisms, potentially helping us understand commonalities between the evolutionary ancient visual apparatus of birds and our own visual sense. It will provide us with a bird’s eye view of the world.