Ted Parker, one of the best birders and a well known recorder of bird songs, recorded the birds in Peru and played back tapes of them so they would respond. Of course it was done in the name of science, but he was relentless. A super researcher. That didn't keep the birds away. Read "The Parrot Without A Name". That will help you appreciate the work that goes into identifying birds. Best, Ann
On Mon, Apr 9, 2012 at 11:39 PM, Kenneth Victor Rosenberg <k...@cornell.edu>wrote: > Hi all, > > Although this discussion has gone on for awhile and is in danger of > getting too heated for this List, I feel compelled to jump in. I want to > thank those who brought scientific experience and reasoning to the debate, > and especially to Lee Ann for the links to deeper discussion and actual > studies on this topic. Bottom line is that the scientific evidence (sparse > as it is) does not support the often strongly negative views that some > birders have towards the use of playback to lure birds into view or get > them to pose for photographs. As with most ethical questions, then, this > issue comes down to people's personal opinions and choices. So here is my > (hopefully somewhat professional and reasoned) personal opinion: > > I have been a professional ornithologist for 35 years and have spent > much of the past 15 years trying to help conserve threatened and declining > bird populations; I am also a lifelong birder, bird-tour leader and > teacher. I have used playback in a wide variety of situations ranging from > scientific protocols to purely recreational -- I frequently use an > owl-mobbing playback during birding, in order to get a more thorough count > of the species in a given area. > > I am not aware of any situation in which a population of birds was > adversely affected by use of playback by birders or researchers. Even in > the most famous and hotly debated cases (Arizona trogons) no effects on > nesting success could be shown, and after 40+ years of using > playback and imitating calls (the same thing really) in many Arizona > canyons, none of the highly sought species have disappeared from those > areas -- in fact most have expanded their distribution and populations in > the general region. I know of many, many cases where bird tour leaders at > tropical locations return year after year to the same "rare" bird > territories, using playback successfully to show these amazing birds to > successive groups of people. The primary negative effect of "excessive" use > of playback (certainly a subjective term) is that the birds quickly > habituate to the sound and stop responding -- very often a bird continues > to sing on its territory but simply does not respond to the playback > (guides use the expression "taped out" to describe such birds). Even around > here I have found that chickadees will not respond to the owl-mobbing > playback if I go to the same area within a short timeframe. In my > experience the adverse effects of excessive playback is mostly on the > birders and not on the birds. In certain locations, such as the tropical > lodge discussed in the posts at Lee Ann's link, or South Fork of Cave Creek > Canyon, guidelines for regulating use of playback (but not banning) might > be necessary -- but again, mostly to preserve the experiences of other > birders. > > I think the ABA Code of Birder Ethics has this issue well covered, and > Sibley's guidelines are very sensible and even offer tips for improving the > effectiveness of playback while birding. And John Confer -- among the most > cautious and respectful bird people I have known -- summarized well the > biological perspective – that even regular (daily) use of playback, even > during the breeding season (not to mention the subsequent capture, > handling, and blood-sampling of individual birds), had minimal if any > effect on breeding success or population status. Certainly compared with > virtually every other form of anthropogenic disturbance or threat to > habitats that birds face everywhere and all the time, the use of playback > by birders, from a conservation perspective, is simply a non-issue. > > If one's personal birding ethics do not include playback or pishing > because of the perceived temporary stress to individual birds, that is > fine, but please don't question the integrity of other birders or SFO > leaders that choose to use these tools to enhance the birding experience. > > KEN > > > Ken Rosenberg > Conservation Science Program > Cornell Lab of Ornithology > 607-254-2412 > 607-342-4594 (cell) > k...@cornell.edu > > On Apr 8, 2012, at 1:37 PM, Lee Ann van Leer wrote: > > I've heard this debated by many birders at many levels. Many pros and > cons have been argued. It is worthy of more research in to what if any > negative or positive impact playback has on individual birds, bird > populations, bird conservation & funding. Ecotourism in general has pros > and cons but researchers have to be willing to do the research to find out > what human impacts have on wildlife. > > Certainly one should adhere to some kind of guidelines regarding playback. > I'm including links to several articles that outline this debate and > propose such guidelines. > > I know playback has been used as a teaching tool for decades. Mobbing & > chickadee tapes in addition to a stuffed owl were used on most of the > graduate level Ornithology (in North Carolina) field trips when I was a > student in 1990. Instructors usually give playback guidelines. > > As far as SFO (Spring Field Ornithology) playback is used very > infrequently. Most field trips it is used not at all and the times it is > used averages perhaps just a couple minutes total per trip. So fear not, > playback used very conservatively in SFO in my opinion as a former student. > I attended every SFO trip possible from 2008-2011 including all the full > weekend trips. > > I'm glad someone reminds us all to be mindful about playback. I consider > myself a moderate on the issue as I see definite pros and potential cons > for the birds. Looking forward to research that gives us more answers. I'd > be willing to help conduct any such research if anyone is brave enough to > want to find out the truth and there were funders. :-) Surely someone must > be working on this already? > > http://10000birds.com/playback-of-bird-calls-benefits-some-birds.htm > > http://www.sibleyguides.com/2011/04/the-proper-use-of-playback-in-birding/ > > > http://www.science.uwaterloo.ca/~smithsm/Impact%20of%20Playback%20on%20Birds.pdf > > > Sent from my iPhone > > On Apr 8, 2012, at 9:36 AM, John and Sue Gregoire < > > > 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 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 List Info:* > Welcome and Basics <http://www.northeastbirding.com/CayugabirdsWELCOME> > Rules and Information <http://www.northeastbirding.com/CayugabirdsRULES> > Subscribe, Configuration and > Leave<http://www.northeastbirding.com/CayugabirdsSubscribeConfigurationLeave.htm> > *Archives:* > The Mail > Archive<http://www.mail-archive.com/cayugabirds-l@cornell.edu/maillist.html> > Surfbirds <http://www.surfbirds.com/birdingmail/Group/Cayugabirds> > BirdingOnThe.Net <http://birdingonthe.net/mailinglists/CAYU.html> > *Please submit your observations to eBird<http://ebird.org/content/ebird/> > !* > -- > -- 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/ --
