Figure 9.

Chewie’s performance by 250-trial block in the RMTS task of Experiment 2, graphed as described in the caption to Figure 4.

On page 4 in the first sentence, why not take out "weakly" and give the reviewer the point he asked for, which is acknowledgment that pigeons do learn relationally sometimes. I think this is a smart move, too, as this person wanted some of those other papers cited, which we did not do, and I agree that in some other kinds of tasks there is better evidence of relational learning than in the RMTS tasks.