Figure 4
From: Smell of green leaf volatiles attracts white storks to freshly cut meadows
Storks immediately approached an aerially-sprayed volatile organic compound mix. (A) and (B) Maps of the area around Böhringen, Germany, showing the locations of water spraying (blue area), leaf alcohol spraying (green areas), the downwind approach locations and distances by independently approaching storks (yellow arrows), and upwind areas where storks resided in fields, but did not approach (white stippled arrows). (A) Experiment conducted on 27-04-2018, (B) Experiment conducted on 02-07-2018. (C) Comparison of approach reactions of storks towards water and leaf alcohol. Chemical structures of the three leaf alcohols are indicated above the black bar. The difference between the treatments is highly significant (X2 = 11.7, N = 15, df = 2, p = 0.003). Maps were created from Google Earth.
