Andersson, Staffan. 1999. “Morphology of UV Reflectance in a Whistling-Thrush: Implications for the Study of Structural Colour Signalling in Birds.” Journal of Avian Biology 30 (2): 193–204.
Andersson, Staffan, Jonas Örnborg, and Malte Andersson. 1998. “Ultraviolet Sexual Dimorphism and Assortative Mating in Blue Tits.” Proceedings of the Royal Society of London B: Biological Sciences 265 (1395): 445–50.
Andersson, Staffan, and Maria Prager. 2006. “Quantification of Coloration.” In Bird Coloration, Volume 1: Mechanisms and Measurements, edited by Geoffrey E. Hill and Kevin J. McGraw, 1:640. Bird Coloration. Harvard University Press.
Andersson, Staffan, Sarah R. Pryke, Jonas Örnborg, Michael J. Lawes, and Malte Andersson. 2002. “Multiple Receivers, Multiple Ornaments, and a Trade‐off Between Agonistic and Epigamic Signaling in a Widowbird.” The American Naturalist 160 (5): 683–91.
Backhaus, Werner. 1991. “Color Opponent Coding in the Visual System of the Honeybee.” Vision Research 31 (7): 1381–97.
Briscoe, Adriana D., and Lars Chittka. 2001. “The Evolution of Color Vision in Insects.” Annual Review of Entomology 46 (1): 471–510.
Caves, Eleanor M, and Sönke Johnsen. 2018. “AcuityView: An r Package for Portraying the Effects of Visual Acuity on Scenes Observed by an Animal.” Methods in Ecology and Evolution 9 (3): 793–97.
Chittka, Lars. 1992. “The Colour Hexagon: A Chromaticity Diagram Based on Photoreceptor Excitations as a Generalized Representation of Colour Opponency.” Journal of Comparative Physiology A 170 (5): 533–43.
Cuthill, Innes C., Andrew T. D. Bennett, J. C. Partridge, and E. J. Maier. 1999. “Plumage Reflectance and the Objective Assessment of Avian Sexual Dichromatism.” The American Naturalist 153 (2): 183–200.
Delhey, Kaspar, Arild Johnsen, Anne Peters, Staffan Andersson, and Bart Kempenaers. 2003. “Paternity Analysis Reveals Opposing Selection Pressures on Crown Coloration in the Blue Tit (Parus Caeruleus).” Proceedings of the Royal Society of London B: Biological Sciences 270 (1528): 2057–63.
Eliason, Chad M., and Matthew D. Shawkey. 2012. “A Photonic Heterostructure Produces Diverse Iridescent Colours in Duck Wing Patches.” Journal of The Royal Society Interface 9 (74): 2279–89.
Endler, John A. 1990. “On the Measurement and Classification of Colour in Studies of Animal Colour Patterns.” Biological Journal of the Linnean Society 41 (4): 315–52.
———. 2012. “A Framework for Analysing Colour Pattern Geometry: Adjacent Colours.” Biological Journal of the Linnean Society 107 (2): 233–53.
Endler, John A., Gemma L. Cole, and Alexandrea M. Kranz. 2018. “Boundary Strength Analysis: Combining Colour Pattern Geometry and Coloured Patch Visual Properties for Use in Predicting Behaviour and Fitness.” Edited by Simon Blomberg. Methods in Ecology and Evolution, August.
Endler, John A., and Paul W. Mielke. 2005. “Comparing Entire Colour Patterns as Birds See Them.” Biological Journal of the Linnean Society 86 (4): 405–31.
Goldsmith, Timothy H. 1990. “Optimization, Constraint, and History in the Evolution of Eyes.” The Quarterly Review of Biology 65 (3): 281–322.
Govardovskii, Victor I., Nanna Fyhrquist, Tom Reuter, Dmitry G. Kuzmin, and Kristian Donner. 2000. “In Search of the Visual Pigment Template.” Visual Neuroscience 17 (4): 509–28.
Gruson, Hugo. 2020. “Estimation of Colour Volumes as Concave Hypervolumes Using α-Shapes.” Methods in Ecology and Evolution 11 (8): 955–63.
Gruson, Hugo, Thomas White, and Rafael Maia. 2019. “Lightr: Import Spectral Data and Metadata in r.” Journal of Open Source Software 43: 1857.
Hart, Nathan S., and Misha Vorobyev. 2005. “Modelling Oil Droplet Absorption Spectra and Spectral Sensitivities of Bird Cone Photoreceptors.” Journal of Comparative Physiology A 191 (4): 381–92.
Keyser, Amber J., and Geoffrey E. Hill. 1999. “Condition–Dependent Variation in the Blue–Ultraviolet Coloration of a Structurally Based Plumage Ornament.” Proceedings of the Royal Society of London B: Biological Sciences 266 (1421): 771–77.
———. 2000. “Structurally Based Plumage Coloration Is an Honest Signal of Quality in Male Blue Grosbeaks.” Behavioral Ecology 11 (2): 202–9.
Maia, Rafael, and Thomas E White. 2018. “Comparing Colors Using Visual Models.” Behavioral Ecology 29 (3): 649–59.
Montgomerie, Robert. 2006. “Analyzing Colors.” In Bird Coloration, Volume 1: Mechanisms and Measurements, edited by Geoffrey E. Hill and Kevin J. McGraw, 1:640. Bird Coloration. Harvard University Press.
Örnborg, Jonas, Staffan Andersson, Simon C. Griffith, and Ben C. Sheldon. 2002. “Seasonal Changes in a Ultraviolet Structural Colour Signal in Blue Tits, Parus Caeruleus.” Biological Journal of the Linnean Society 76 (2): 237–45.
Peters, A., A. G. Denk, K. Delhey, and B. Kempenaers. 2004. “Carotenoid-Based Bill Colour as an Indicator of Immunocompetence and Sperm Performance in Male Mallards.” Journal of Evolutionary Biology 17 (5): 1111–20.
Pryke, Sarah R., Michael J. Lawes, and Staffan Andersson. 2001. “Agonistic Carotenoid Signalling in Male Red-Collared Widowbirds: Aggression Related to the Colour Signal of Both the Territory Owner and Model Intruder.” Animal Behaviour 62 (4): 695–704.
Renoult, Julien P., Almut Kelber, and H. Martin Schaefer. 2017. “Colour Spaces in Ecology and Evolutionary Biology.” Biological Reviews 92 (1): 292–315.
Saks, Lauri, Kevin McGraw, and Peeter Horak. 2003. “How Feather Colour Reflects Its Carotenoid Content.” Functional Ecology 17 (4): 555–61.
Shawkey, Matthew D., Anne M. Estes, Lynn M. Siefferman, and Geoffrey E. Hill. 2003. “Nanostructure Predicts Intraspecific Variation in Ultraviolet–Blue Plumage Colour.” Proceedings of the Royal Society of London B: Biological Sciences 270 (1523): 1455–60.
Siefferman, Lynn, and Geoffrey E. Hill. 2005. UV-Blue Structural Coloration and Competition for Nestboxes in Male Eastern Bluebirds.” Animal Behaviour 69 (1): 67–72.
Smiseth, Per T., Jonas Örnborg, Staffan Andersson, and Trond Amundsen. 2001. “Is Male Plumage Reflectance Correlated with Paternal Care in Bluethroats?” Behavioral Ecology 12 (2): 164–70.
Stoddard, Mary Caswell, and Richard O. Prum. 2008. “Evolution of Avian Plumage Color in a Tetrahedral Color Space: A Phylogenetic Analysis of New World Buntings.” The American Naturalist 171 (6): 755–76.
Stoddard, Mary Caswell, and Martin Stevens. 2011. “Avian Vision and the Evolution of Egg Color Mimicry in the Common Cuckoo.” Evolution 65 (7): 2004–13.
Troje, Nikolaus. 1993. “Spectral Categories in the Learning Behaviour of Blowflies.” Zeitschrift für Naturforschung C 48 (1-2): 96–104.
Vorobyev, Misha, Robert Brandt, Dagmar Peitsch, Simon B Laughlin, and Randolf Menzel. 2001. “Colour Thresholds and Receptor Noise: Behaviour and Physiology Compared.” Vision Research 41 (5): 639–53.
Vorobyev, Misha, Daniel Colaco Osorio, Andrew T. D. Bennett, N. Justin Marshall, and Innes C. Cuthill. 1998. “Tetrachromacy, Oil Droplets and Bird Plumage Colours.” Journal of Comparative Physiology A 183 (5): 621–33.