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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 (18,133 Views) | |
| Raptorman | Oct 23 2007, 06:25 AM Post #136 |
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| Nancy | Oct 23 2007, 07:35 PM Post #137 |
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As I stated in chat yesterday, I went to Hawk Hill in the Marin Headlands on Sunday to hear the Hawk Talk and view the 2 banded birds they trapped in the blind for visitors to see. They set up the blinds down in canyons trap the birds that are attracted to the bait. They don't put hoods over the birds, but instead place them in cans/tubes with air holes to calm them and then take measurements and other stats for their records. I do have pictures and as soon as I get them will post them here of the Coopers Hawk and the Red Tail dark morph. For those who are interested here is the link to the organization that spends several volunteer hours counting these birds during the migration season. They are a wonderful organization and are very dedicated to these raptors. http://www.ggro.org/ The web site also has some wonderful pictures and if you click on the Hawk Hill view you will see exactly what spectacular views I got to see. The weather was picture perfect. So be patient and I will get those photos for you soon. This is the second time I have been up there with beautiful weather! |
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| Raptorman | Oct 23 2007, 08:52 PM Post #138 |
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| Nancy | Oct 24 2007, 08:26 AM Post #139 |
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Thanks Raptorman never thought about all of the hood sizes one would have to have, but makes perfect sense. The tubes seemed to work very well and these birds were relatively calm. What a collection of hoods and pricey too. Thanks for the info pictures will follow soon I promise. |
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| Raptorman | Oct 24 2007, 08:53 AM Post #140 |
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| ostrich2 | Oct 24 2007, 09:12 AM Post #141 |
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I'm curious as to what the tubes look like and how that works - I'm having trouble picturing how the bird can be measured and the band put on if it's inside the tube? With the hood the head is covered but the rest of the bird's body is accessible. |
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| Nancy | Oct 24 2007, 03:31 PM Post #142 |
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Ostrich Since the visitors are not at the blind and only see the birds when they are brought up from the canyon, I'm not sure how they measure and weigh them, but I"m sure it is not too hard for the experienced. The tubes are typically made from cans with holes for air. The bird's rear sticks out, but the feet are secure. When the volunteer pulls them from the "can" they reach in to secure the feet first then slip the can off of the bird. I had posted pics last year of my experience up there and you could see the bird in the can nicely. I'm not sure how to locate those photos here on the forum. As far as the bait goes I recall them saying they sometimes use these birds that actually don't get eaten and other types of goodies to trap the raptors. I'm sure Bill could give you a better idea than I. As visitors we never get to see the actual trapping/banding only after the fact. |
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| Raptorman | Oct 24 2007, 04:09 PM Post #143 |
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| ostrich2 | Oct 24 2007, 04:18 PM Post #144 |
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Bill, in the IWS update that was just posted earlier today Steffani mentioned that some of the recent reticent behaviour by the eagles (especially the bald Pimu) might be because of being bothered by insects attracted to the food left out for them. Have you had any experiences with this type of problem or seen it happen with any of your birds? If wasps or stinging insects were attracted to a food item you could certainly imagine how it could be unpleasant for the eagle (and perhaps cause a temporary negative association with the provided food, especially if the birds are relatively well fed in general and wouldn't be as motivated to tolerate such things as a wild bird probably would be). |
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| Raptorman | Oct 24 2007, 05:30 PM Post #145 |
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| Bea | Oct 25 2007, 11:25 AM Post #146 |
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Nancy, I remember those! I'll help you look for them. I'm assuming it was around the same time last year? (October?) |
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| Raptorman | Oct 25 2007, 11:40 AM Post #147 |
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| Bea | Oct 25 2007, 11:49 AM Post #148 |
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Good thinking Bill. I tried the search also and came up with no results.
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| ostrich2 | Oct 25 2007, 08:06 PM Post #149 |
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This video of the Brisbane peregrine chick was posted on YouTube - there is definitely lots of feather development now and the chick seems to be starting some self-feeding as well: http://www.youtube.com/watch?v=X5yf8cfCsA4 |
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| Raptorman | Oct 26 2007, 08:46 AM Post #150 |
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