INSTINCT AND INTELLIGENCE IN BIRDS
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formance was given on level ground, or an incline, and whether facing the observer or away from him, though with variable movements in many
Fig. 31. Five Kingfishers about twenty-three days old, removed from underground and placed in line, to illustrate habit of keeping still, and of walking backwards.
Fig. 32. The same Kingfishers one minute after the position assumed in Fig. 31 was photographed, showing that Nos. 1 and 5 have each taken a few backward steps, while the pose of Nos. 2 to 4 has not appreciably changed.
cases. When placed in head-to-tail line, and in contact, the line would remain unbroken for a surprising length of time, with hardly the turn of a head, which seems to be due to their habit of sitting still, with
