Figure 7 in A long-term survey of spring monarch butterflies in north-central Florida

Figure 7. Wing wear of monarchs for each week through the spring flight period, from a total of 302 adults combined for 2005–2017 using a scale from 1 (very fresh with no scale loss) to 5 (worn, many scales missing). Two measures are shown for each week: the median determined from all butterflies and the proportion of adults with wing wear 1s and 2s. Individuals in early April were mostly fresh.