Featured Research

from universities, journals, and other organizations

Putting GPS To Work, Researchers Shed Light On Road-following By Pigeons

Date:
July 28, 2004
Source:
Cell Press
Summary:
Using satellite tracking to study the paths pigeons take on homeward-bound journeys, researchers have obtained strong new evidence to support a long-held theory: in some environments, pigeons instinctively learn to follow major roadways in navigating their flight.

Using satellite tracking to study the paths pigeons take on homeward-bound journeys, researchers have obtained strong new evidence to support a long-held theory: in some environments, pigeons instinctively learn to follow major roadways in navigating their flight. The new findings are reported by a research group headed by Dr. Hans-Peter Lipp of the University of Zürich.

Anecdotal evidence from breeders of racing pigeons as well as initial aerial tracking studies together suggested that pigeons may follow roadways and use highway landmarks as turning points in their flight. However, the challenge of accurately tracking the birds stood in the way of solid quantitative analysis. In the new work, miniaturized GPS "flight-loggers," which pigeons carried on their backs, allowed researchers a clear and reliable picture of the birds' flight paths.

Over three years, the researchers analyzed more than 200 flight paths of 20-80 km in length made by pigeons travelling toward their home loft from numerous release sites located in the general vicinity of Rome, Italy. They found that, when released from familiar sites, pigeons with homing experience were significantly attracted to highways and a railway track running in the approximate directions home. When these structures began to veer significantly from the beeline to the loft, some birds tended to break away and head in a more homeward direction, but others took a detour by following the highway until a main junction, at which point they followed a valley road in the direction of the loft.

Overall, the degree to which the birds appeared to follow roadways was strongest in the early and middle sections of their homeward journeys, when, the researchers suspect, roads serve to stabilize the birds' innate compass course. As they approached the loft, the birds appeared to switch strategies and rely more on topographical points as bona fide "road map" components. The birds may use these features in a cognitive strategy that helps them locate their loft in their more immediate home area.

The researchers found that, although following roadways in some cases represented significant digressions from the beeline home, in general the early benefit of the roadways in keeping the birds on course seemed to compensate for the added flight distance. In fact, the birds appeared to prefer to follow roadways once they became experienced with the release sites; individuals who made three or more journeys home showed an increasing tendency to follow highways. The authors speculate that the preference for roadway following could form because easier navigation may allow brain processing-time and power to be directed to other tasks, such as watching for predators.

The pigeons appeared to be attracted to the SS Aurelia, Italy's old coastal highway, to a greater extent than the newer and larger highway A12 or the railway. The SS Aurelia traces the ancient imperial Via Aurelia, which was begun in 241 BC and connected Rome to what is now southern France.

It is unclear the extent to which pigeons or other birds may employ strategies akin to road following in non-urban areas, but the authors point out their agreement with previous assertions that homing pigeons appear to have "a remarkable ability to shift from one homing strategy to another," and they urge that their new findings be reasonably interpreted.

Hans-Peter Lipp, Alexei L. Vyssotski, David P. Wolfer, Sophie Renaudineau, Maria Savini, Gerhard Tröster, and Giacomo Dell'Omo: "Pigeon Homing along Highways and Exits"

###

Publishing in Current Biology, Volume 14, Number 14, 27 July 2004, pages 1239-1249.


Story Source:

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


Cite This Page:

Cell Press. "Putting GPS To Work, Researchers Shed Light On Road-following By Pigeons." ScienceDaily. ScienceDaily, 28 July 2004. <www.sciencedaily.com/releases/2004/07/040727085553.htm>.
Cell Press. (2004, July 28). Putting GPS To Work, Researchers Shed Light On Road-following By Pigeons. ScienceDaily. Retrieved September 14, 2014 from www.sciencedaily.com/releases/2004/07/040727085553.htm
Cell Press. "Putting GPS To Work, Researchers Shed Light On Road-following By Pigeons." ScienceDaily. www.sciencedaily.com/releases/2004/07/040727085553.htm (accessed September 14, 2014).

Share This



More Plants & Animals News

Sunday, September 14, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Conservationists Face Uphill PR Battle With New Shark Rules

Conservationists Face Uphill PR Battle With New Shark Rules

Newsy (Sep. 14, 2014) — New conservation measures for shark fishing face an uphill PR battle in the fight to slow shark extinction. Video provided by Newsy
Powered by NewsLook.com
Shocker: Journalists Are Utterly Addicted To Coffee

Shocker: Journalists Are Utterly Addicted To Coffee

Newsy (Sep. 13, 2014) — A U.K. survey found that journalists consumed the most amount of coffee, but that's only the tip of the coffee-related statistics iceberg. Video provided by Newsy
Powered by NewsLook.com
'Magic Mushrooms' Could Help Smokers Quit

'Magic Mushrooms' Could Help Smokers Quit

Newsy (Sep. 11, 2014) — In a small study, researchers found that the majority of long-time smokers quit after taking psilocybin pills and undergoing therapy sessions. Video provided by Newsy
Powered by NewsLook.com
Spinosaurus Could Be First Semi-Aquatic Dinosaur

Spinosaurus Could Be First Semi-Aquatic Dinosaur

Newsy (Sep. 11, 2014) — New research has shown that the Spinosaurus, the largest carnivorous dinosaur, might have been just as well suited for life in the water as on land. 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