Complementary shifts in photoreceptor spectral tuning unlock the full adaptive potential of ultraviolet vision in birds

Matthew B. Toomey, Olle Lind, Rikard Frederiksen, Robert W. Curley, Ken M. Riedl, David Wilby, Steven J. Schwartz, Christopher C. Witt, Earl H. Harrison, Nicholas W. Roberts, Misha Vorobyev, Kevin McGraw, M. Carter Cornwall, Almut Kelber, Joseph C. Corbo