Image of Black Swan

[Con Boekel <>]

Hi
This is an unusal image in that it shows the beak serrations which are
normally not visible. I have searched the readily available on-line
databases without being able to see something similar. This bird, and
what I presume to be its partner, were engaging in some mutual behaviour
that involved both birds sitting absolutely still in the water, facing
each other and with the lower mandible held closed at the tip but with
the serrations showing. I am not sure whether the birds had lowered the
jaw end of the mandibles or whether this is even possible.
regards
Con

Details
Black Swan
Gungahlin Pond
Image captured: 5 May 2016

Attachment:

Description: _P3A4113 jp final d COG test 2.jpg

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