from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The common tern, Sterna hirundo.
  • n. A hummingbird of any of several species of the genus Thaumastura, having a long forked tail.

from the GNU version of the Collaborative International Dictionary of English

  • n. The common tern.
  • n. Any one of several species of humming birds of the genus Thaumastura having a long forked tail.

from The Century Dictionary and Cyclopedia

  • n. A humming-bird of the genus Thaumastura, having a very long forficate tail, like a pair of shears, as T. cora, T. henicura, etc.
  • n. A sea-swallow or tern: from the long forked tail. See cut under roseate.
  • n. A British shears-moth, as Hadena dentina.


shear +‎ tail? (Wiktionary)


  • Stattersfield et al. identifies two birds with limited ranges that include this ecoregion; the near endemic Mexican sheartail (Doricha eliza) and the endemic Yucatan Wren (Campylorhynchus yucatanicus).

    Petenes mangroves


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