Hi Simon,
It is interesting that you raise the question about the colour of Brown
Gerygones now as I observed an unusual looking brown coloured gerygone at
Coutts Crossing on Saturday. It was very white on the belly and the tail
showed a large amount of white. The head colour and bill length didn't seem
quite right for a Brown Gerygone and I was wondering if it was a Western
Gerygone. I wasn't sure of the subtle differences at the time between the
two species and the bird was silent so I will be chasing it up again when
the rain stops. I have had Brown Gerygones at the site occasionally,
despite it being dry open forest/woodland and not rainforest. It is
probably a Brown Gerygone but I want to be sure. The amount of white in the
tail seems to be the best distinguishing character between the two with the
Brown having a white tipped tail and the Western also having a second white
band closer to the base of the tail. If anyone knows of other
distinguishing characters that can be seen in the field I would be keen to
know about them.
Regards
Greg
Dr Greg. P. Clancy
Ecologist and Birding-wildlife Guide
| PO Box 63 Coutts Crossing NSW 2460
| 02 6649 3153 | 0429 601 960
http://www.gregclancyecologistguide.com
-----Original Message-----
From: Birdrangers Enquiries
Sent: Monday, June 10, 2013 11:52 AM
To:
Subject: Brown Gerygone plumage
Hi All,
Here the winter flocks of Brown Gerygone, ssp richmondi, show a range of
subtle plumage variations, including some very dark breasted & faced
individuals. I'm interested in hearing from anyone who has seen darker than
usual Brown Gerygones of this subspecies.
Any photos, particularly of a spread tail would also be interesting.
Regards & Thanks,
Simon Clayton
Manager
Birdrangers, Gibraltar Reserve
Cangai, NSW, 2460
www.birdrangers.com
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