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| Discussion of other Raptor species; their anatomy, biology, ecology, etc. | |
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| Tweet Topic Started: Sep 16 2007, 11:04 AM (18,140 Views) | |
| Raptorman | Sep 21 2007, 02:07 PM Post #31 |
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| Patti | Sep 21 2007, 05:19 PM Post #32 |
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Bea, I saw what I thought was a Red-shouldered hawk this past Monday on West Loop Dr. Saw it well on the underside, flying low...strongly banded tail black/white tail and beautiful orange underside---for lack of a better way to describe the call...it is sort of like key-you key-you and I could still hear it at my house when I got home. Yet the bird you show does not have such strong tail banding, and the wing markings are not as distinct as the Red-shouldered. I've seen that well from a telephone pole on West Loop on another occasion. Very strong markings. Bill: Bea and I live in the same neighborhood. My dad was aware of Cooper's hawks in our area because they would kill his pigeons and the Red-shouldered don't (according to the man who takes care of my deceased dad's pigeons). |
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| Raptorman | Sep 21 2007, 05:55 PM Post #33 |
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| ostrich2 | Sep 21 2007, 06:31 PM Post #34 |
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A while back I found a link to this clip of a red-tailed screech which really sounds like what you describe. It's also exactly what I've heard when occasionally seeing red-tails on the property at work. Red-tailed hawk |
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| Raptorman | Sep 21 2007, 07:29 PM Post #35 |
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| r.e.s. | Sep 22 2007, 10:59 AM Post #36 |
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Interesting, and I wonder if it might explain something I read a while back ... In this article there's a reference to a "hawk war" as a cause of the decline of spotted eagles in Europe ...
When I first read that, I was puzzled what it meant by "the hawk war", but after reading your comment, I wonder whether this is just another reference to the same war-time killing of raptors to protect the carrier pigeons. (?) Or was there some other kind of "hawk war" in Europe? |
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| Raptorman | Sep 22 2007, 11:44 AM Post #37 |
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| r.e.s. | Sep 22 2007, 12:09 PM Post #38 |
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Bill, thanks for your reply -- seems like a reasonable explanation. |
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| ostrich2 | Sep 23 2007, 06:14 PM Post #39 |
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Bill, are owls ever flown as falconry birds? In Ontario it appears that the GHO and the snowy owl are considered by the government as legal falconry species, although I'm not sure whether they are ever flown in practice. |
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| Raptorman | Sep 23 2007, 06:40 PM Post #40 |
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| ostrich2 | Sep 24 2007, 03:18 PM Post #41 |
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I seem to recall now that there was mention of snowy owls at the Toronto airport several years ago - I can't remember now if that was as part of trying to discourage unwanted birds or animals away from the runways, or it might have been another species. |
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| Raptorman | Sep 24 2007, 05:23 PM Post #42 |
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| ostrich2 | Sep 24 2007, 05:44 PM Post #43 |
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I found this reference Impact of Raptor Predation on a Declining Vole Population Unfortunately the entire reference is not accessible online, but it does mention snowy owls:
I think I am going to look up to rough-legged hawk to see how they compare to the red-tailed - I have often seen large raptors near the airport and have always assumed they are red-tails, even if I can't see the signature tail that well. I wonder whether some could be rough-legged hawks. |
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| ostrich2 | Sep 24 2007, 05:54 PM Post #44 |
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Here is another tidbit I found by one of the authors of the above study: James A. Baker M.Sc. 1977
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| Raptorman | Sep 24 2007, 08:09 PM Post #45 |
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