Floyd E. Hayes (Hayes, Floyd E.)

• 
  Status, Distribution and Biogeography of the Birds of Paraguay
  by Floyd E. Hayes
  Softcover, Common Ground Dist Inc, ISBN 1878788302 (1-878788-30-2)
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  Studies in Trinidad and Tobago Ornithology Honoring Richard Ffrench
  by Stanley A. Temple, Floyd E. Hayes, University of the West Indies (Saint Augustine, Trinidad and Tobago)
  Hardcover, Dept. of Life Sciences, University of the West Indies, ISBN 9766201676 (976-620-167-6)