Greetings. I'm wondering when young Aust Wood Ducks cease being
'dependent young' for the purposes of recording data for our surveys.
Specifically, at present we have a family here, mum and dad and 7
teenage young. They young are about the size of their parents, obviously
they feed themselves as they walk along, but they are very much still
the family group, with one parent at the front and one at the back as
they walk along in single file.
So, they can graze OK - they are not fed by the parents which is what I
normally use as an operationalisation of the DY concept - but are still
looked after by the parents.
Any thoughts? Any clear guidance available form data set managers?
Thanks - David
*******************************************************************************************************
This is the email announcement and discussion list of the Canberra
Ornithologists Group.
List-Post: <>
List-Help: <>
List-Unsubscribe: <>
List-Subscribe: <>
List archive: <http://bioacoustics.cse.unsw.edu.au/archives/html/canberrabirds>
List manager: David McDonald, email
<>
|