Ferruginous Pygmy-Owl Glaucidium brasilianum It can be difficult to distinguish from other species of Glaucidium strictly by sight; the adult of the Ferruginous. Glaucidium brasilianum are very small and reach a size of only about 6 inches tall. They have round heads with black eyespots on the back, no ear tufts, and. Taxonomic Notes: Glaucidium brasilianum and G. tucumanum (del Hoyo and Collar ) were previously lumped as G. brasilianum following Sibley and.
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Thought to be closest to G. Has been considered to include those as races, but recent studies have shown all to be vocally distinct glaucisium to differ in DNA. In the past treated as conspecific with G. N populations cactorumintermediumridgwayi recently proposed as forming a separate species G. Birds from S Mexico Chiapas and Guatemala sometimes separated as race saturatum. Race ucayalae also suggested as possibly a separate species, differing genetically and vocally R ; more study required.
Form intermedium often synonymized with cactorumbut probably worthy of recognition R. Race pallens perhaps better placed in G. Only subscribers are able to see the bibliography. Login or Subscribe to get access to a lot of extra features! Skip to main content.
Subspecies and Distribution G. What do coloured bullet points mean?
Descriptive notes 15—19 cm; male 46—86 g, female 62— g ridgwayi ; wingspan c. Voice Advertising call a prolonged series of 10—60 whistled notes, c.
Ferruginous pygmy owl
Habitat Tropical lowlands and foothills in primary and secondary forest, coastal and thorn scrub, bushes Food and feeding Mostly insects; also reptiles, birds, mammals and amphibians; diet varies among seasons and habitat types.
Examples of prey items include Breeding Lays generally c. Movements Resident, at least in N of range; no evidence of movements elsewhere. Status and conservation Not globally threatened Least Concern.
In USA, has declined drastically during 20th century; in Texas lower Rio Grande valleyonce generally distributed in Bibliography Only subscribers are able to see the bibliography.
Public comments No comments brasilianun Only members are able to post public comments.
FERRUGINOUS PYGMY-OWL Glaucidium brasilianum FAUNA PARAGUAY
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Ferruginous Pygmy-owl Glaucidium brasilianum. Handbook of the Birds of the World Alive.