Okanoya, K. and Dooling, R.J. (1990). Temporal integration in zebra finches (Poephila guttata). Journal of the Acoustical Society of America, 87, 2782-2784.

Three zebra finches were trained with operant techniques to respond to pure tones. Absolute thresholds were obtained for nine durations of a 3-kHz tone and five durations of a 1-kHz tone. The temporal integration functions were described using the negative exponential function proposed by Plomp and Bouman [J. Acoust. Soc. Am. 31, 749-758 (1959)]. The time constants obtained for zebra finches are about 250 ms, which are similar to those reported for a number of species, including humans and other bird species.