canberrabirds
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Subject: | Not shovelling, whistling (2) |
From: | Denis Wilson <> |
Date: | Tue, 18 Oct 2011 22:37:51 +1100 |
I remember well the PWD at Jerrabomberra Creek, from about 10 years ago which was "emotionally attached" to Black Swans. So I can support Philip's memory there. But surely Plumed Whistle Ducks are one of those species famous for population irruptions. . Canberra is a long way from the dry inland, but enough COG members have travelled to the Darling River, and further afield, and have reported back to this forum, to establish that there has been a huge population explosion of many species of birds following the breaking of the drought in the Murray Darling Basin. That is more than 2 years ago, by my memory (without checking the detailed Bureau figures). Budgerigahs, Pigeons, Ducks all sorts of things have been going "gang-busters". Most recently, the Barn Owls have featured on this forum. Another classic case. Rain in the wheat belt >> mouse plague >> Barn Owl population explosion. So, Geoffrey's photo of 28 birds do not surprise me one bit (nice photo, though. Geoffrey.) I see no need to posit human intervention what-so-ever. Indeed, the likelihood of a sudden release of 28 birds stretches credulity, I think. But that's just an amateur opinion. I anticipate the COG chatline getting excited about Black-tailed Nativehens any week now. Cheers Denis Wilson
-- Denis Wilson "The Nature of Robertson" www.peonyden.blogspot.com |
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