Cuckoos (Cuculidae)

Squirrel Cuckoo (Piaya cayana) - HBW 4, p. 601

French: Piaye écureuil German: Eichhornkuckuck Spanish: Cuco-ardilla Común

Taxonomy: Cuculus cayanus Linnaeus, 1766, Cayenne.
The abruptness and rarity of intergradation between the forms mexicana and thermophila in Oaxaca, S Mexico, suggest that these forms may belong to distinct species, though a few intermediates are known. Fourteen subspecies recognized.

Subspecies and Distribution:

  • mexicana (Swainson, 1827) - Mexico, on Pacific slope and inland S to Isthmus of Tehuantepec.
  • thermophila P. L. Sclater, 1860 - E Mexico (E San Luis Potosí and S Tamaulipas S to Veracruz, Yucatán and Isthmus of Tehuantepec on Gulf coast S to near Tehuantepec City) through Central America to Panama and NW Colombia.
  • nigricrissa (Cabanis, 1862) - W Colombia (ocurring E to slopes of C Andes), W Ecuador, NW & EC Peru.

     See all 14 subspecies
  • mexicana (Swainson, 1827) - Mexico, on Pacific slope and inland S to Isthmus of Tehuantepec.
  • thermophila P. L. Sclater, 1860 - E Mexico (E San Luis Potosí and S Tamaulipas S to Veracruz, Yucatán and Isthmus of Tehuantepec on Gulf coast S to near Tehuantepec City) through Central America to Panama and NW Colombia.
  • nigricrissa (Cabanis, 1862) - W Colombia (ocurring E to slopes of C Andes), W Ecuador, NW & EC Peru.
  • mehleri Bonaparte, 1850 - NE Colombia E of Gulf of Urabá to Magdalena Valley and along W slope of E Andes, E in coastal Venezuela to Paria Peninsula.
  • mesura (Cabanis & Heine, 1863) - Colombia E of Andes, and E Ecuador.
  • circe Bonaparte, 1850 - Venezuela S of L Maracaibo.
  • cayana (Linnaeus, 1766) - E & S Venezuela through the Guianas and S to N bank of lower Amazon.
  • insulana Hellmayr, 1906 - Trinidad.
  • obscura Snethlage, 1908 - C Brazil S of Amazon, from R Juruá E to R Tapajóz and S to upper Gy-Paraná.
  • hellmayri Pinto, 1938 - Brazil S of Amazon, from Santarem to mouth of Amazon, and coast of N Maranhão.
  • pallescens (Cabanis & Heine, 1863) - E Brazil.
  • cabanisi J. A. Allen, 1893 - S Brazil, in C Mato Grosso and Goiás to N São Paulo.
  • macroura Gambel, 1849 - SE Brazil to Paraguay, NE Argentina and Uruguay.
  • mogenseni J. L. Peters, 1926 - S Bolivia to NW Argentina.