Fig. 2From: Saltmarsh vegetation and social environment influence flexible seasonal vigilance strategies for two sympatric migratory curlew species in adjacent coastal habitatsDifference in the percentage time spent under visual obstruction ± SE between Far Eastern Curlew (a) and Eurasian Curlew (b) in two different coastal habitats (S. salsa saltmarsh vs. mudflat) and seasons (spring vs. autumn)Back to article page