Efficiency, bias, and consistency of visual and aural surveys of curassows (Cracidae) in tropical forests. Jimenez, I., Londono, G. A., & Cadena, C. D. Journal of Field Ornithology, 74:210–216, 2003.
bibtex   
@ARTICLE{JIM03,
  author = {Jimenez, I. and Londono, G. A. and Cadena, C. D.},
  title = {Efficiency, bias, and consistency of visual and aural surveys of
	curassows ({C}racidae) in tropical forests},
  journal = {Journal of Field Ornithology},
  year = {2003},
  volume = {74},
  pages = {210--216},
  comment = {http://www.zoo.ufl.edu/gustavo/images/pdf/Jimenez_et_al_2003.pdf},
  file = {:Jimenez2003.pdf:PDF},
  subdatabase = {distance},
  timestamp = {2006.11.22}
}

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