Rhynchokinesis while preening

["Philip Veerman" <>]

Rhynchokinesis: Or a special type of cranial kinesis. If you look at "cranial kinesis" in wikipedia (by Google search) you will find a lot about it. Including a list of species of birds in which it has been demonstrated, to which we have added some (hardly surprising). It also mentions prokinesis which is what I described for parrots & finches but the process is the same, just the location of the hinge has moved. Theoretically there should also be some ability to bend the upper mandible downwards slightly just by pulling the hinge backwards rather than forwards. That would seem to be useful when probing in soft mud. I haven't seen that though.

 

Philip

 

-----Original Message-----
From: Geoffrey Dabb [
Sent: Tuesday, 11 December 2012 3:32 PM
To:
Subject: FW: [canberrabirds] Rhynchokinesis while preening

 

From: wallaces [
Sent: Tuesday, 11 December 2012 2:32 PM
To: Canberra birds
Subject: [canberrabirds] Rhynchokinesis while preening

 

Re the recent discussion of rhynchokinesis, the attached photo taken at Jerrabomberra Wetlands today shows this skill being demonstrated while preening.

 

Steve