Jarvis, J. R., Taylor, N. R., Prescott, N. B., Meeks, I., & Wathes, C. M. Measuring and modelling the photopic flicker sensitivity of the chicken (Gallus g. domesticus). Vision Research, 42(1), 99-106. https://doi.org/10.1016/S0042-6989%2801%2900268-1