Data_nestlings_repeats

Phenotypic measures of all nestling traits (body mass on d16, wing length on d16, PHA response on d13, brightness, hue and UV chroma of 1 tail feather on d16).Each individual's tail feather was measured multiple times. Nestlings were cross fostered between 2005 and 2009 and thus RearID is their nest of rearing while GeneticID is their nest of origin. Sex is 1 for female, 2 for male and 0 when unknown. Vane tarsus, and wing length are measured in mm and weight_d16 is measured in g. machine refers to the spectrophotometer that was used for measuring tail feathers (1 for 2005-2006, 2 for the other years)