I have often seen the white morph of Grey Goshawk accompanying flocks of Little Corellas and Sulphur-crested Cockatoos. I wondered why until some years ago I saw a bird drop out of such a flock and snatch a pigeon from the powerlines.
Denise Lawungkurr Goodfellow 1/7 Songlark Street, Bakewell, NT 0832 043 8650 835
PhD candidate, SCU Vice-chair, Wildlife Tourism Australia Nominated for the Condé Nast international ecotourism award, 2004 by the renowned American website, Earthfoot. Wildlife Adviser, BBC¹s Deadly 60¹
Birds of Australia’s Top End and Quiet Snake Dreaming available on amazon.com A second edition of Fauna of Australia¹s Top End used by the University of NSW as a text for 12 years is now under preparation.
‘It gave me huge insight into the lives’ of Aboriginal Australians¹, Jonathon Franzen, American author, birder, conservationist (August, 2011) on Quiet Snake Dreaming.
The best guide in Darwin is Denise Goodfellow. Bo Beolens, the Fat Birder.
On 12/1/13 8:31 AM, “Greg and Val Clancy”
> My understanding is that the white morph of the Grey Goshawk was able to > survive in a forest situation where it stands out like the proverbial > because it resembles white coloured cockatoos. I don’t know if there is any > science behind that claim though. > > > Greg > Dr Greg. P. Clancy > Ecologist and Birding-wildlife Guide > PO Box 63 Coutts Crossing NSW 2460 > 0266493153 0429601960 > > —–Original Message—– > From: David Adams > Sent: Saturday, January 12, 2013 9:26 AM > To: David Adams > Cc: COG line ; Birding-Aus > Subject: Re: [Birding-Aus] [canberrabirds] Why are the C. Sparrowhawk & > B.Goshawk so similar? > >> An all white raptor in the forest? > > John Leonard wrote to mention the White Hawk, an unusual New World forest > raptor: > > http://neotropical.birds.cornell.edu/portal/species/overview?p_p_spp=124796 > > Despite often being nearly all white, these birds seem to be doing pretty > well for themselves over a huge area. The behavior section at the Cornell > site is interesting. it sounds like these birds follow around parties > of monkeys (arboreal foragers) and coati (ground foragers – relatives > of Raccoons) pouncing on whatever prey is flushed. Perhaps their coloration > is not selected for/against as they’re opportunistic feeders? No > idea…it’s always easy to make up an evolutionary/ecological story…but > that doesn’t make it true. > =============================== > > =============================== > > To unsubscribe from this mailing list, > send the message: > unsubscribe > (in the body of the message, with no Subject line) > to: birding-aus-request@vicnet.net.au > > http://birding-aus.org > ===============================
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