Fig. 3From: The common redstart as a suitable model to study cuckoo-host coevolution in a unique ecological contextDate of laying (on y-axis 160 = 8th June) by cuckoos (white circles) and redstarts (grey circles). Simple regression lines of date of laying in relation to year for cuckoos (solid line) and redstarts (dashed line; 75th percentile data only, see Methods). Dates of parasitism for season 2011 are not included because of the low frequency of nest checksBack to article page