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Article
Evidence for Discrete Landmark Use by Pigeons During Homing
The Journal of Experimental Biology (2012)
  • Cordula V. Mora, Bowling Green State University
  • Jeremy D. Ross, Bowling Green State University - Main Campus
  • Peter V. Gorsevski, Bowling Green State University - Main Campus
  • Budhaditya Chowdhury, Bowling Green State University - Main Campus
  • Verner P. Bingman, Bowling Green State University - Main Campus
Abstract

Considerable efforts have been made to investigate how homing pigeons (Columba livia f. domestica) are able to return to their loft from distant, unfamiliar sites while the mechanisms underlying navigation in familiar territory have received less attention. With the recent advent of global positioning system (GPS) data loggers small enough to be carried by pigeons, the role of visual environmental features in guiding navigation over familiar areas is beginning to be understood, yet, surprisingly, we still know very little about whether homing pigeons can rely on discrete, visual landmarks to guide navigation. To assess a possible role of discrete, visual landmarks in navigation, homing pigeons were first trained to home from a site with four wind turbines as salient landmarks as well as from a control site without any distinctive, discrete landmark features. The GPS-recorded flight paths of the pigeons on the last training release were straighter and more similar among birds from the turbine site compared with those from the control site. The pigeons were then released from both sites following a clock-shift manipulation. Vanishing bearings from the turbine site continued to be homeward oriented as 13 of 14 pigeons returned home. By contrast, at the control site the vanishing bearings were deflected in the expected clock-shift direction and only 5 of 13 pigeons returned home. Taken together, our results offer the first strong evidence that discrete, visual landmarks are one source of spatial information homing pigeons can utilize to navigate when flying over a familiar area.

Keywords
  • homing pigeon,
  • familiar site,
  • GPS,
  • landmark,
  • spatial cognitive map,
  • wind turbine
Disciplines
Publication Date
2012
Publisher Statement
The original published version of this article can be found at http://jeb.biologists.org/content/215/19/3379.full.
Citation Information
Cordula V. Mora, Jeremy D. Ross, Peter V. Gorsevski, Budhaditya Chowdhury, et al.. "Evidence for Discrete Landmark Use by Pigeons During Homing" The Journal of Experimental Biology Vol. 215 Iss. 19 (2012)
Available at: http://works.bepress.com/cordula_mora/1/