Fig. 2
From: The impact of shape and attachment position of biologging devices in Northern Bald Ibises
Frequency distribution for Northern Bald Ibises flying in the wind tunnel (N = 2 birds) of (A) heart rate (bpm) and (B) VeDBA (mg); different bar colors indicate measurements during flight with different logger shapes (cube and drop) and at different wind angles (+ 2° and + 6°)