Dooling, R.J. (1979). Temporal summation of pure tones in birds. Journal of the Acoustical Society of America, 65, 1058-1060.

Two parakeets and two field sparrows were trained by a method of avoidance conditioning to respond to pure tones. Absolute thresholds were obtained for 10 durations of a 2.86-kHz tone. The temporal integration function for these four birds can best be described by a time constant t of 230 ms. These data are similar to those reported for a number of other species.