I am fairly sure that all orders apart from passerines have anything from fully functional to vestigial salt glands behind the eyes. This would be very useful to Australian birds given the large amount of salt found in water both estuarine and inland. Having said that I have also see SC Cockatoos foraging around on estuarine rocks (e.g. below Audley Weir in RNP) and apparently dipping their bills – closer examination showed that they were, of course, sampling Sydney Rock oyster au natural. Ciao Chris Lloyd
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Ugh ! —–Original Message—– Chris Lloyd Sent: Thursday, 27 November 2014 9:15 AM I am fairly sure that all orders apart from passerines have anything from fully functional to vestigial salt glands behind the eyes. This would be very useful to Australian birds given the large amount of salt found in water both estuarine and inland. Having said that I have also see SC Cockatoos foraging around on estuarine rocks (e.g. below Audley Weir in RNP) and apparently dipping their bills – closer examination showed that they were, of course, sampling Sydney Rock oyster au natural. Ciao Chris Lloyd
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