Figure 2From: Individual migration timing of common nightingales is tuned with vegetation and prey phenology at breeding sitesChange in NDVI during two weeks around migration events of the nine male nightingales. Departure from non-breeding site (TDEP_NB), arrival at (TARR_S) and departure from the spring stopover site (TDEP_S) as well as arrival at breeding site (TARR_B). Three asterisks and one asterisk indicate high (p ≤ 0.001) and moderate (p ≤ 0.01) significance of difference from zero in a t-test, respectively.Back to article page