Naturwissenschaften

, Volume 91, Issue 3, pp 125–129 | Cite as

Multiple UV reflectance peaks in the iridescent neck feathers of pigeons

Short Communication

Abstract

Recent studies of colorful plumage signals in birds have been aided by the finding that birds can see ultraviolet (UV) light and thus may communicate using colors invisible to humans. Some of the pioneering and more pivotal work on avian color vision was performed with domestic pigeons (Columba livia), yet surprisingly there have been few detailed reports of the UV-reflecting properties of pigeon feathers. Here, I use UV-VIS fiber-optic spectrometry to document the full-spectrum reflectance characteristics of iridescent purple and green neck plumage in pigeons. Neck feathers that appear purple to the human eye exhibit four reflectance peaks—two in the UV and one in the blue and red regions—and thus exhibit a UV-purple hue. Neck feathers that appear green to the human eye are characterized by five spectral peaks: two in the UV (UVA and UVB), a predominant green peak, and secondary violet and red peaks, conferring a UV-purple-green color. Such elaborate UV coloration suggests that birds may use an even more complex and ‘hidden’ UV signaling system than previously thought.

Keywords

Reflectance Intensity Colorful Plumage Plumage Region Domestic Pigeon Avian Color 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgements

I thank G. Hill for the use of his spectrometer, R. Mirarchi for use of his birds, I. Cuthill and three anonymous referees for supplying valuable comments on the manuscript, and the Environmental Protection Agency (Graduate STAR Fellowship no. 91584201-0) for financial support during manuscript preparation.

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Copyright information

© Springer-Verlag 2004

Authors and Affiliations

  1. 1.Department of Neurobiology and BehaviorCornell UniversityIthacaUSA

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