Typical Owls (Strigidae)

Ferruginous Pygmy-owl (Glaucidium brasilianum) - HBW 5, p. 217

French: Chevêchette brune German: Brasilzwergkauz Spanish: Mochuelo Caburé

Taxonomy: Strix brasiliana J. F. Gmelin, 1788, Ceará, Brazil.
Considered by some authors to form superspecies with G. tucumanum, G. peruanum and G. nanum. Has been considered to include those as races, but recent studies have shown all to be vocally distinct and to differ in DNA. In past treated as conspecific with G. jardinii, but again differs in vocalizations and DNA. N populations (cactorum, ridgwayi, saturatum) recently proposed as forming separate species (G. ridgwayi); further study needed. Race pallens perhaps better placed in G. tucumanum. Twelve subspecies recognized.

Subspecies and Distribution:

  • cactorum van Rossem, 1937 - S Arizona S to SW Mexico.
  • saturatum Brodkorb, 1941 - S Mexico (Chiapas) and Guatemala.
  • ridgwayi Sharpe, 1875 - S Texas through E & S Mexico to Panama.

     See all 12 subspecies
  • cactorum van Rossem, 1937 - S Arizona S to SW Mexico.
  • saturatum Brodkorb, 1941 - S Mexico (Chiapas) and Guatemala.
  • ridgwayi Sharpe, 1875 - S Texas through E & S Mexico to Panama.
  • medianum Todd, 1916 - N Colombia.
  • margaritae Phelps & Phelps, Jr., 1938 - Margarita I (Venezuela).
  • phalaenoides (Daudin, 1800) - N & E Venezuela, Trinidad and the Guianas.
  • duidae Chapman, 1929 - S Venezuela (Mt Duida).
  • olivaceum Chapman, 1939 - SE Venezuela (Mt Auyan-Tepuí).
  • ucayalae Chapman, 1929 - Amazonian Colombia, Venezuela and Brazil, S to S Peru and N Bolivia.
  • brasilianum (J. F. Gmelin, 1788) - NE Brazil S to NE Argentina and N Uruguay.
  • pallens Brodkorb, 1938 - E Bolivia, W Paraguay and N Argentina.
  • stranecki König & Wink, 1995 - C Argentina to S Uruguay.