Department of Defense Partners in Flight Strategic Plan

Abstract

Neotropical migratory birds, sometimes called nearctic-neotropical migrants, are those species that nest in the United States and Canada ("nearctic" region) and migrate south to the tropical regions of Mexico, Central America, South America, and the Caribbean ("neotropics") for the winter. Migration is predicated primarily upon food resources. Since most insects become unavailable during our harsh winters, insect?eating birds find abundant food resources in the tropics. Many raptor spedes also follow this migraring food chain. Over half of all bird species nesting in the US are classified as neotropical migratory birds. Some or all of the populations of 338 species? which include many of our songbirds, waterfowl, birds of prey, waterbirds and shorebirds? migrate each fall to the tropics.

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Document Details

Document Type
Technical Report
Publication Date
Jul 28, 2004
Accession Number
ADA525533

Entities

Organizations

  • United States Assistant Secretary of Defense

Tags

Communities of Interest

  • Biomedical
  • Energy and Power Technologies
  • Human Systems
  • Space

DTIC Thesaurus Topics

  • Birds
  • Forests
  • Habitats
  • Medical Personnel
  • Wildlife

Fields of Study

  • Environmental science

Readers

  • Aquatic Ecology
  • Vector-Borne Disease and Entomology