Use this article (Blough, 1972):

https://www.researchgate.net/publication/6972431_Recognition_by_the_pigeon_of_stimuli_varying_in_two_dimensions1

1.) Summarize the procedures in Experiment 2 that produced this figure.

2.) What variables exerted stimulus control over responding? Reference specifically Point A and Point B on the figure.

PERCENT RESPONSE 120 100 SECONDS AFTER REINF BIRD 476 582 LIGHT WAVELENGTH-NM 20 575 Fig. 3. Results of Bird 476 in Experiment 2. The reinforcement wavelength-time combination is in the "back corner" of this isometric projection; that is, the reinforcement wavelength is 582 nm, and the rein- forcement time is at the end of the "120-sec" interval.