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Discussion of other Raptor species; their anatomy, biology, ecology, etc.
Topic Started: Sep 16 2007, 11:04 AM (18,120 Views)
Naturegal
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ostrich2,Nov 24 2007
11:26 PM
Okay, here's a video which I think is a must watch for all of us on this thread:

Birds Of Prey Are Cool

That isn't you singing is it Bill? :D

Ian - Talk about "Cool", this video was really cool. Thank you for posting it, what a joy to watch :><:
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cdn-cdn
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Even though the video was made for children, I certainly learned more about Birds of Prey through watching it. Thank you for posting it, Ostrich. It's a good reference tool besides just my birding books, which aren't much help sometimes.
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ostrich2
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Raptorman,Nov 25 2007
08:44 AM
Yes, that video was "cool". Pretty good educational tool. Thanks. Bill :D

Since that video was done by somebody who obviously knows a lot about raptors I wondered whether you were familiar with the author - I'm guessing probably a falconer or biologist. I wonder why he didn't include any owls - that's the only thing that's missing. It was interesting the way the Northern Harrier's has the very owl-like facial disk.

I didn't realize there were only 3 accipiter species - goshawk, sharp-shinned, and Cooper's. From the observing at Hawk Hill, I know the distinctive tail of the Cooper's now. I'm not so sure about the sharp-shinned - but there were only a couple of those :D
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Trishrg
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Naturegal,Nov 25 2007
06:03 AM
ostrich2,Nov 24 2007
11:26 PM
Okay, here's a video which I think is a must watch for all of us on this thread:

Birds Of Prey Are Cool

  That isn't you singing is it Bill?  :D

Ian - Talk about "Cool", this video was really cool. Thank you for posting it, what a joy to watch :><:

:><: :><: :><: :><: :><:
Bravo! Thanks for turning us on to this.
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Raptorman
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ostrich2
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Raptorman,Nov 25 2007
03:29 PM


I thought I had mentioned many times that there are only 3 accipiter species (in North America). There certainly are others in other parts of the world.

I also noticed that they showed no owl species but that is often the case. Owls often get left out. I have even had people try to tell me they aren't raptors. They certainly are not members of the Order Falconiforms but rather Strigforms (all birds fall into the Class Avis but after that are divided into various Orders.


You have probably mentioned it, but it's something that I hadn't specifically absorbed before - I think probably a bit because it's easy to mix up the genus accipiter, and the family Accipitridae.

I noticed as well that the Peterson Field Guide To Hawks (I'm not sure why they called it field guide to hawks since it includes eagles, falcons, and vultures as well) also omits owls, although perhaps since most owls are nocturnal there's not that as much reason to have them in a field guide. I asked at Hawk Hill whether any owls are ever sighted, and the response was no because they would be migrating at night.
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Raptorman
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ostrich2
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Drat - I saw the large raptor again this morning driving in along the back road, gliding around near the tree line. He was quite close, but by the time I could get my camera out and try to get a shot he had moved off in the distance :( I wonder if he was even the same bird I spotted a couple of weeks ago - maybe a resident. If he hasn't moved from the area yet now that we're starting to get snow on the ground, I'm assuming this bird may be present through the winter.

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Raptorman
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ostrich2
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Raptorman,Nov 27 2007
01:21 PM
Possibly but if the snow cover makes hunting "impossible" the bird will migrate to an area were food (prey) is available OR switch to another prey species which because of the snow may become more accessible. Bill :D

There's only a little bit of snow now, so the ground is still mainly clear. I'm not sure exactly what the options are for a RT or a RL hawk once there gets to be snow cover - I had the impression they could still hunt rodents or small animals like squirrels? Of course birds could still be an option if the species hunts them.
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Raptorman
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Patti
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From Bill: The confusion between those words Accipitroforms, Accipitridea and Accipiter is the reason I mentioned to pay attention to the suffix.

As you can imagine, this is an area of confusion for me. Bill, I think I emailed you privately several weeks ago about something being "wrong" with the YouTube video title that you selected for I.D. purposes. Well, that is it in a nutshell. Being mixed up with titles/groupings.

To be truthful, I'm not so hot in this area with parrots or cockatoos, so you can only imagine how easy it is to be 100% scrambled with raptors. The way you work with these concepts is helpful.
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Raptorman
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ostrich2
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Here is a site with some numbers from the (California) Hawk Hill migration counts:

Golden Gate Hawkwatch
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ostrich2
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Bill, have you ever worked with the Ferruginous hawk? That's a species I haven't seen mentioned that often, but it seems like a very formidable bird.
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