Data and code for Andrews et al. 'Time perception and patience: Individual differences in interval timing precision predict choice impulsivity in European starlings, Sturnus vulgaris' Version of August 4th 2020 The data are presented here with different degrees of processing (i.e. from every trial on every day by every bird separately in 'timing data.Rdata', to one summary row per bird in 'timing data by bird.csv'). Separate scripts do the processing, fit polynomials, reproduce the by-bird analyses in the paper, and run the numerical model. Please see the document 'Description of R scripts and files' for details of the different versions of the data and what each script does.