Talk:Peregrine Falcon
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Moved "Peregrine Falcon" here to preserve edit history prior to deletion Tannin 10:41 Apr 30, 2003 (UTC)
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[edit] Source for speed
Does anyone have a source for the high estimate of diving speed ("over 320 km/h")? —JerryFriedman 16:08, 29 Apr 2005 (UTC)
- Have a look at terminal velocity. In fact it shouldn't be the upper limit that is in question but the lower limit. I think the source linked has transposed km/h for mp/h. Simply put, if it died mid air it would fall at about 120mph - a similar speed to a human skydiver. If a sky diver pulls in his arms and goes head first his speed will approach 200mph. Peregrines being as aerodynamic as they are in a stoop easily attain similar speeds. Incidentally I remember seeing a documentary some years ago whith a hand-reared Peregrine that would follow its handler. The handler and a cameraman jumped from a balloon with a significant head start over the bird. Despite the men falling at c.120mph the bird caught up with them in seconds and was filmed easily circling them, visibly having to slow itself to their speed. LiamE 15:51, 7 October 2005 (UTC)
- After a bit of a dig around I have seen claims of over 270 mph recorded on radar guns pointed at Peregrines. Guinness world records entry for the fastest bird reads as follows "Fastest Dive By A Bird - The fastest dive by a bird was recorded in a series of German experiments, when a peregrine falcon reached a velocity of 270.5 km/h (168 mph) at a 30-degree angle of stoop, rising to a maximum of 350 km/h (217 mph) at an angle of 45 degrees. This falcon, also known as a duck hawk, ‘stoops’ by circling high up and then folds its wings back to dive at its prey with their talons." On the basis of that I will edit the article. --LiamE 16:56, 7 October 2005 (UTC)
There was a TV program in the UK in which they tested a falcon I can't remeber which program it was but they couldn;t calculate the speed as it was going so fast. Way faster than any skydiver could go. They thought faster than 250mph though.
Well, here's one that the author might've used- ((http://raysweb.net/specialplaces/pages/falcon.html)). Arosaurer
- Uh, what happened to the speed? I don't see the removal in the History, and I don't have time at the moment to find it. Vandalism? —JerryFriedman 18:03, 13 April 2006 (UTC)
These sources should appear in the article, not only on the talk page. Apus 11:51, 21 September 2006 (UTC)
There was a documentary called Flying With Falcons, shown last night on Channel 5 (UK). In it, falconer Lloyd Buck and a team of balloonists, skydivers and BASE jumpers trained some peregrines to target a brightly coloured bean bag with meat attached rather than the usual swung lure. See [1] for some detail although that is mainly about the camera equipment used. They started training the birds on the ground, then from a tethered hot air balloon, then from cliffs in Devon and finally by jumping from some high bridges and cliffs in Italy (Mount Brento?). As well as high speed camera equipment filmed from different points which could accurately measure their speed, they fitted the birds with tiny accelerometers. The best result they got was from a bird that was already in the air and "waiting on" above the cliff. As the BASE jumper leapt, the peregrine stooped for the lure in his hand. It hit it once, veered off, stooped again and hit it again. During that flight it hit a top speed of 204 mph & pulled 6G! And these are just young birds, 2 or 3 years old. -- SteveCrook 02:06, 7 October 2006 (UTC)
This article is too "America-centric" If these falcons range throughout the world, why is there very little information about these falcons from other parts of the world? This article isn't a sub, but it obviously isn't finished. 01:30, 28 September 2005 (UTC)gazowelz
- They peregrinate (wander), but not usually from one continent to another. I don't think it's very "America-centric". The nominate Falco peregrinus is described as being found over much of western Eurasia. -- SteveCrook 02:11, 7 October 2006 (UTC)
[edit] Source for being a pest
Since people were so helpful about my request for a source for the speed (thank you!), does anyone have a source for the statement that it's considered a pest in rural parts of the U.S.? I find that very hard to believe. —JerryFriedman 17:54, 13 April 2006 (UTC)
[edit] "they live up to 30 years old"
Removed the dubious passage. Just because of the fact that it doesn't say whether in captivity or in the wild.
[edit] Subspecies
"The Barbary Falcon, Falco (peregrinus) pelegrinoides, is often considered to be a subspecies of the Peregrine." Why is this sentence beneath the list of subspecies? Shouldn't it be in it? --Mithcoriel 20:05, 24 September 2006 (UTC)
- No, because it's often considered to be a separate species, so its status is not clear-cut. jimfbleak 20:08, 24 September 2006 (UTC)
