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 September 22, 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 September 22, 2014).

Share This



More Plants & Animals News

Monday, September 22, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Raw: San Diego Zoo Welcomes Cheetah Cubs

Raw: San Diego Zoo Welcomes Cheetah Cubs

AP (Sep. 20, 2014) The San Diego Zoo has welcomed two Cheetah cubs to its Safari Park. The nearly three-week-old female cubs are being hand fed and are receiving around the clock care. (Sept. 20) Video provided by AP
Powered by NewsLook.com
Chocolate Museum Opens in Brussels

Chocolate Museum Opens in Brussels

AFP (Sep. 19, 2014) Considered a "national heritage" in Belgium, chocolate now has a new museum in Brussels. In a former chocolate factory, visitors to the permanent exhibition spaces, workshops and tastings can discover derivatives of the cocoa bean. Duration: 01:00 Video provided by AFP
Powered by NewsLook.com
Could Grief Affect The Immune Systems Of Senior Citizens?

Could Grief Affect The Immune Systems Of Senior Citizens?

Newsy (Sep. 19, 2014) The study found elderly people are much more likely to become susceptible to infection than younger adults going though a similar situation. Video provided by Newsy
Powered by NewsLook.com
Jury Delivers Verdict in Salmonella Trial

Jury Delivers Verdict in Salmonella Trial

AP (Sep. 19, 2014) A federal jury has convicted three people in connection with an outbreak of salmonella poisoning five years ago that sickened hundreds of people and was linked to a number of deaths. (Sept. 19) Video provided by AP
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