(Downloading may take up to 30 seconds.
If the slide opens in your browser, select File -> Save As to save it.)
Click on image to view larger version.


Figure 4


Fig. 4. Typical dive profile for dives to 20–30 m depth for Brünnich's guillemot (BRGU), common guillemot (COGU), razorbill (RAZO), rhinoceros auklet (RHAU) and little penguin (LIPE). Parts of the profile where the bird made strokes are indicated by filled circles. Note that none of the birds made strokes on their ascent above 15–20 m.