Measuring foraging activity in a deep-diving bird: comparing wiggles, oesophageal temperatures and beak-opening angles as proxies of feeding
2010 ◽
Vol 213
(22)
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pp. 3874-3880
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2008 ◽
Vol 75
(4)
◽
pp. 1311-1317
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2008 ◽
Vol 75
(4)
◽
pp. 1301-1310
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2009 ◽