[cayugabirds-l] Bar headed Geese can migrate at an altitude 7290 m
Hi all, Here is what the abstract of the paper by Hawke, Balachandran et al write in current issue of Proceedings of Royal Society B, It has nice maps showing routes of migration! Bar-headed geese are renowned for migratory flights at extremely high altitudes over the world's tallest mountains, the Himalayas, where partial pressure of oxygen is dramatically reduced while flight costs, in terms of rate of oxygen consumption, are greatly increased. Such a mismatch is paradoxical, and it is not clear why geese might fly higher than is absolutely necessary. In addition, direct empirical measurements of high-altitude flight are lacking. We test whether migrating bar-headed geese actually minimize flight altitude and make use of favourable winds to reduce flight costs. By tracking 91 geese, we show that these birds typically travel through the valleys of the Himalayas and not over the summits. We report maximum flight altitudes of 7290 m and 6540 m for southbound and northbound geese, respectively, but with 95 per cent of locations received from less than 5489 m. Geese travelled along a route that was 112 km longer than the great circle (shortest distance) route, with transit ground speeds suggesting that they rarely profited from tailwinds. Bar-headed geese from these eastern populations generally travel only as high as the terrain beneath them dictates and rarely in profitable winds. Nevertheless, their migration represents an enormous challenge in conditions where humans and other mammals are only able to operate at levels well below their sea-level maxima. -- Cayugabirds-L List Info: http://www.NortheastBirding.com/CayugabirdsWELCOME http://www.NortheastBirding.com/CayugabirdsRULES http://www.NortheastBirding.com/CayugabirdsSubscribeConfigurationLeave.htm ARCHIVES: 1) http://www.mail-archive.com/cayugabirds-l@cornell.edu/maillist.html 2) http://www.surfbirds.com/birdingmail/Group/Cayugabirds 3) http://birdingonthe.net/mailinglists/CAYU.html Please submit your observations to eBird: http://ebird.org/content/ebird/ --
[cayugabirds-l] Common Tern
A Sterna tern, apparently Common, is flying around with gulls off Stewart Park. Orange-crowned Warbler still present with Yellow-rumps and a Blackpoll. Jay McGowan -- Cayugabirds-L List Info: http://www.NortheastBirding.com/CayugabirdsWELCOME http://www.NortheastBirding.com/CayugabirdsRULES http://www.NortheastBirding.com/CayugabirdsSubscribeConfigurationLeave.htm ARCHIVES: 1) http://www.mail-archive.com/cayugabirds-l@cornell.edu/maillist.html 2) http://www.surfbirds.com/birdingmail/Group/Cayugabirds 3) http://birdingonthe.net/mailinglists/CAYU.html Please submit your observations to eBird: http://ebird.org/content/ebird/ --
[cayugabirds-l] Montezuma Audubon Center Hosts Big Year Lecture
The Montezuma Audubon Center is pleased to welcome Matt Stenger who will give a presentation about his Big Year on Saturday November 10 from 2:00 PM – 3:30 PM. In 2011, Matt left on a journey that sent him crisscrossing the continent in search of birds and a fresh understanding of the world around him. During his Big Year, he slogged through marshes, climbed mountains and traversed valleys, seeking a sense of inner peace and balance, and of course, BIRDS! Join us as Matt tells the story of how searching for birds helped him rediscover himself. An optional hike with Matt will follow. Matt Stenger has been an avid birder since he was about 8 years old. In 1999 he graduated from Hocking College with a degree in recreation and wildlife management. He is a naturalist, devoted to helping people discover a real and meaningful connection with nature. During his 11 year career with a local park district in Southwest Ohio, Matt led a wide variety of nature hikes and gave lectures for groups of all ages and abilities. A few years back Matt took up photography and quickly got hooked. Along with birding and photography he has a passion for reaching a broader audience through his writing. Fee: $5/child, $7.50/adult, $20/family. Space is limited. Registration required. To register or for more information about the Montezuma Audubon Center, please call 315-365-3588 or email montez...@audubon.org. 2295 State Route 89 Savannah, NY 13146. Chris Lajewski Education Manager Montezuma Audubon Center -- Cayugabirds-L List Info: http://www.NortheastBirding.com/CayugabirdsWELCOME http://www.NortheastBirding.com/CayugabirdsRULES http://www.NortheastBirding.com/CayugabirdsSubscribeConfigurationLeave.htm ARCHIVES: 1) http://www.mail-archive.com/cayugabirds-l@cornell.edu/maillist.html 2) http://www.surfbirds.com/birdingmail/Group/Cayugabirds 3) http://birdingonthe.net/mailinglists/CAYU.html Please submit your observations to eBird: http://ebird.org/content/ebird/ --
[cayugabirds-l] Back-door Carolina Wren
This morning, as I was looking out the kitchen window, our neighborhood Carolina Wren flew directly to the back door under the small porch and started exploring every nook cranny gleaning for insects. As I watched through the storm door, it climbed up a raincoat and busily examined gardening baskets, tools, everything, softly trilling all the while. By the way, I have not seen this trill described in any of the several bird books I have. The trill is similar to that of the T.Titmouse, but longer and more musical. It does appear briefly in the /first/ example for CAWR in the Macaulay Library audio list, but not in any other examples that I checked some years ago. Our wren trills very often, signaling its presence long before any loud song. Nari Mistry, Ellis Hollow Rd -- Nari B. Mistry, Ithaca, NY To see my paintings, visit http://www.ArtbyNari.com -- Cayugabirds-L List Info: http://www.NortheastBirding.com/CayugabirdsWELCOME http://www.NortheastBirding.com/CayugabirdsRULES http://www.NortheastBirding.com/CayugabirdsSubscribeConfigurationLeave.htm ARCHIVES: 1) http://www.mail-archive.com/cayugabirds-l@cornell.edu/maillist.html 2) http://www.surfbirds.com/birdingmail/Group/Cayugabirds 3) http://birdingonthe.net/mailinglists/CAYU.html Please submit your observations to eBird: http://ebird.org/content/ebird/ --
[cayugabirds-l] OT Springhouse Rd. Dryden
FYI Warning.While parked at the pull-off on Springhouse Rd. this morning to take my dog for a walk, my car was broken into. My binoculars, spotting scope camera and other stuff was stolen. Be careful when you park, don't leave valuables in your car. Even though it is all covered by insurance, it is still a pain in the A**. Carl -- For those who fought for it, freedom has a flavor the protected will never know Unknown Marine Khe Sahn, Vietnam -- Cayugabirds-L List Info: http://www.NortheastBirding.com/CayugabirdsWELCOME http://www.NortheastBirding.com/CayugabirdsRULES http://www.NortheastBirding.com/CayugabirdsSubscribeConfigurationLeave.htm ARCHIVES: 1) http://www.mail-archive.com/cayugabirds-l@cornell.edu/maillist.html 2) http://www.surfbirds.com/birdingmail/Group/Cayugabirds 3) http://birdingonthe.net/mailinglists/CAYU.html Please submit your observations to eBird: http://ebird.org/content/ebird/ --
Re: [cayugabirds-l] OT Springhouse Rd. Dryden
So sorry to hear this Carl, what a crummy experience. Bad karma to the thief. Linda On Thu, Nov 1, 2012 at 2:10 PM, Carl Steckler c...@cornell.edu wrote: FYI Warning.While parked at the pull-off on Springhouse Rd. this morning to take my dog for a walk, my car was broken into. My binoculars, spotting scope camera and other stuff was stolen. Be careful when you park, don't leave valuables in your car. Even though it is all covered by insurance, it is still a pain in the A**. Carl -- For those who fought for it, freedom has a flavor the protected will never know Unknown Marine Khe Sahn, Vietnam -- Cayugabirds-L List Info: http://www.NortheastBirding.**com/CayugabirdsWELCOMEhttp://www.NortheastBirding.com/CayugabirdsWELCOME http://www.NortheastBirding.**com/CayugabirdsRULEShttp://www.NortheastBirding.com/CayugabirdsRULES http://www.NortheastBirding.**com/**CayugabirdsSubscribeConfigurat** ionLeave.htmhttp://www.NortheastBirding.com/CayugabirdsSubscribeConfigurationLeave.htm ARCHIVES: 1) http://www.mail-archive.com/**cayugabirds-l@cornell.edu/**maillist.htmlhttp://www.mail-archive.com/cayugabirds-l@cornell.edu/maillist.html 2) http://www.surfbirds.com/**birdingmail/Group/Cayugabirdshttp://www.surfbirds.com/birdingmail/Group/Cayugabirds 3) http://birdingonthe.net/**mailinglists/CAYU.htmlhttp://birdingonthe.net/mailinglists/CAYU.html Please submit your observations to eBird: http://ebird.org/content/**ebird/ http://ebird.org/content/ebird/ -- -- Don't ask what your bird club can do for you, ask what you can do for your bird club!! ')_,/ -- Cayugabirds-L List Info: http://www.NortheastBirding.com/CayugabirdsWELCOME http://www.NortheastBirding.com/CayugabirdsRULES http://www.NortheastBirding.com/CayugabirdsSubscribeConfigurationLeave.htm ARCHIVES: 1) http://www.mail-archive.com/cayugabirds-l@cornell.edu/maillist.html 2) http://www.surfbirds.com/birdingmail/Group/Cayugabirds 3) http://birdingonthe.net/mailinglists/CAYU.html Please submit your observations to eBird: http://ebird.org/content/ebird/ --
[cayugabirds-l] GooseHaven Cattle Egrets continue
3 Cattle Egrets were in the field on the East side of Rt89 at the intersection of Old Schoolhouse Rd. (1/4 mile South of Lay Rd.) at 1:30 this afternoon. -- Cayugabirds-L List Info: http://www.NortheastBirding.com/CayugabirdsWELCOME http://www.NortheastBirding.com/CayugabirdsRULES http://www.NortheastBirding.com/CayugabirdsSubscribeConfigurationLeave.htm ARCHIVES: 1) http://www.mail-archive.com/cayugabirds-l@cornell.edu/maillist.html 2) http://www.surfbirds.com/birdingmail/Group/Cayugabirds 3) http://birdingonthe.net/mailinglists/CAYU.html Please submit your observations to eBird: http://ebird.org/content/ebird/ --
