Hayes , Floyd E., 1. Department of Life Sciences, University of the West Indies, St. Augustine, Trinidad & Tobago and 2. Department of Biology, Pacific Union College, Angwin, USA, Trinidad and Tobago

• Living World, Journal of the Trinidad and Tobago Field Naturalists' Club Living World 2004 - Research Papers
  Seasonal Variation in Gull Populations along Trinidad’s West Coast, Trinidad and Tobago
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