Philip,
Sorry to be unclear. I was actually referring to the shift between
earlier observations, which have been recording roughly equal
numbers of males and females, and the observations by myself and
Duncan, both of which, as you point out, show roughly the same
ratio. I'm sure the possible significance of the missing females
is not lost on you.
Cheers,
John
On 30/09/11 7:02 PM, Philip Veerman wrote:
Hello John,
For what it is worth, a group of 6 males
and 2 females is 75% males and thus it is not a
shift of gender balance from what Duncan wrote, indeed
within statistical probability it is equal.
Philip
Interesting shift in the
gender balance. I was watching a much smaller group on
Tuesday morning in the same area, consisting of 6 males and 2
females.
John Brannan
On 30/09/11 12:52 PM, Duncan McCaskill wrote:
There is a loose flock of up to about 35 - 40 Superb
Parrots in Benjamin Way, near ABS House and the Immigration
buildings. They are feeding on the elm trees (I think they are
elms - I don't know trees very well, especially exotics). They
have been around for a few days. At a guess, I would say it is
about 70-80% males.
Duncan.
--
------------
John Brannan
Canberra, Australia
Email: m("netspeed.com.au","john.brannan");">
Phone: (+612) 6258 6038 Fax: (+612) 6258 6238
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