Featured Research

from universities, journals, and other organizations

A Case Of Mistaken Identity For The Ivory-billed Woodpecker?

Date:
March 16, 2007
Source:
BioMed Central
Summary:
Video evidence that an extinct woodpecker is alive and well in Arkansas, USA may prove to be a case of mistaken identity. Research published today in the open access journal BMC Biology shows how fleeting images thought to be the Ivory-billed Woodpecker Campephilus principalis could be another native woodpecker species.

Video evidence that an extinct woodpecker is alive and well in Arkansas, USA may prove to be a case of mistaken identity. Research published today in the open access journal BMC Biology shows how fleeting images thought to be the Ivory-billed Woodpecker Campephilus principalis could be another native woodpecker species.

J. Martin Collinson compared David Luneau's Arkansas video footage from April 2004 of the supposed Ivory-billed Woodpecker with fresh footage of the Pileated Woodpecker Dryocopus pileatus, a superficially similar black and white species. The Pileated Woodpecker's wings were thought to beat more slowly that the 8.6 beats per second captured on Luneau's video, and its wings have black trailing edges. The trailing edges of the Ivory-billed Woodpecker's wings are white.

Aberdeen-based Collinson concludes that Luneau's video shows a bird that is not fully identified, and probably a Pileated Woodpecker. His analysis of the fresh Pileated Woodpecker video footage showed that its wings did reach 8.6 beats per second during an escape flight. He also found that as Pileated Woodpeckers fly away from the camera, their plumage is hard to distinguish from the Ivory-billed Woodpecker's. He suggests that the Pileated Woodpecker's distinctive black trailing wing edges can be spotted in the Luneau video as the wings stroke downwards. Previous analysis suggested these were the black wingtips of the Ivory-billed Woodpecker.

Collinson argues that the Ivory-billed Woodpecker's rediscovery remains unproven: "With no verified reports in the USA for over 50 years, it seemed impossible that a crow-sized black, white and red bird should have eluded the nation's ornithologists, hunters and conservationists in heavily populated South-eastern USA for so long." However, the original video published in Science catalysed conservation efforts in SE USA's bottomland swamp forests, which face continuing development. Furthermore, it spurred renewed efforts, in Florida and elsewhere, to find the Ivory-billed Woodpecker and determine its status in the USA.

Article: Video analysis of the escape flight of Pileated Woodpecker Dryocopus pileatus: Does the Ivory-billed Woodpecker Campephilus principalis persist in continental North America?

J. Martin Collinson

BMC Biology (in press)


Story Source:

The above story is based on materials provided by BioMed Central. Note: Materials may be edited for content and length.


Cite This Page:

BioMed Central. "A Case Of Mistaken Identity For The Ivory-billed Woodpecker?." ScienceDaily. ScienceDaily, 16 March 2007. <www.sciencedaily.com/releases/2007/03/070314195716.htm>.
BioMed Central. (2007, March 16). A Case Of Mistaken Identity For The Ivory-billed Woodpecker?. ScienceDaily. Retrieved August 20, 2014 from www.sciencedaily.com/releases/2007/03/070314195716.htm
BioMed Central. "A Case Of Mistaken Identity For The Ivory-billed Woodpecker?." ScienceDaily. www.sciencedaily.com/releases/2007/03/070314195716.htm (accessed August 20, 2014).

Share This




More Plants & Animals News

Wednesday, August 20, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Possible Ebola Patient in Isolation at California Hospital

Possible Ebola Patient in Isolation at California Hospital

Reuters - US Online Video (Aug. 20, 2014) — A patient who may have been exposed to the Ebola virus is in isolation at the Kaiser Permanente South Sacramento Medical Center. Linda So reports. Video provided by Reuters
Powered by NewsLook.com
Flower Power! Dandelions Make Car Tires?

Flower Power! Dandelions Make Car Tires?

Reuters - Business Video Online (Aug. 20, 2014) — Forget rolling on rubber, could car drivers soon be traveling on tires made from dandelions? Teams of scientists are racing to breed a type of the yellow flower whose taproot has a milky fluid with tire-grade rubber particles in it. As Joanna Partridge reports, global tire makers are investing millions in research into a new tire source. Video provided by Reuters
Powered by NewsLook.com
Unsustainable Elephant Poaching Killed 100K In 3 Years

Unsustainable Elephant Poaching Killed 100K In 3 Years

Newsy (Aug. 20, 2014) — Poachers have killed 100,000 elephants between 2010 and 2012, as the booming ivory trade takes its toll on the animals in Africa. Video provided by Newsy
Powered by NewsLook.com
Awesome New Camouflage Sheet Was Inspired By Octopus Skin

Awesome New Camouflage Sheet Was Inspired By Octopus Skin

Newsy (Aug. 19, 2014) — Scientists have developed a new device that mimics the way octopuses blend in with their surroundings to hide from dangerous predators. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins