Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Aves Strigiformes Strigidae

Scientific Name: Glaucidium mooreorum
Species Authority: Silva, Coelho & Gonzaga, 2002
Common Name(s):
English Pernambuco Pygmy-owl, Pernambuco Pygmy Owl, Pernambuco Pygmy-Owl
Taxonomic Source(s): del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A. and Fishpool, L.D.C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Lynx Edicions BirdLife International.
Identification information: A typical neotropical pygmy-owl of the Glaucidium minutissimum species complex. It has a light grey-chestnut coloured crown and head speckled with conspicuous white spots on the face and head to the lower nape. Has a white collar and white underparts streaked with rufous. Back is chestnut. Tail dark with white spots. Similar spp. it differs from its geographically closest relatives in its overall lighter colouration, size and voice. Voice a short phrase of 5-7 notes.

Assessment Information [top]

Red List Category & Criteria: Critically Endangered B1ab(iii,v);C2a(i,ii);D ver 3.1
Year Published: 2012
Date Assessed: 2012-05-01
Assessor(s): BirdLife International
Reviewer(s): Butchart, S. & Symes, A.
Contributor(s): Albano, C. & Roda, S.
Facilitator/Compiler(s): Bird, J., Butchart, S., Sharpe, C J, Symes, A.
This species is assumed to have a tiny and declining population within an extremely small known range. Surveys have failed to locate it elsewhere, and available habitat continues to decline as a consequence of severe human pressures. As a result it is currently considered Critically Endangered.

Previously published Red List assessments:
2009 Critically Endangered (CR)
2008 Critically Endangered (CR)
2007 Critically Endangered (CR)
2006 Not Evaluated (NE)
2004 Not Recognized (NR)
2000 Not Recognized (NR)
1994 Not Recognized (NR)
1988 Not Recognized (NR)

Geographic Range [top]

Range Description: Glaucidium mooreorum was newly described from the Reserva Biológica de Saltinho (which covers just 4.8 km2) in Atlantic coastal forest in Pernambuco, Brazil. It was tape-recorded in the same locality in November 1990. The species was also found in a 100 ha forest patch at Usina Trapiche (08 35'S, 35 07'W) in November 2001. It occupies a tiny and severely fragmented range. Playback surveys in lowland forests elsewhere in Pernambuco and Alagoas states since 2004 have failed to locate this species (S. A. Roda in litt. 2006, 2008), and there are no records from other well-surveyed forest sites in the region. Its population has not been estimated accurately but is assumed to be tiny based on the lack of records outside its tiny range and continuing deforestation within the area.

Countries occurrence:
Continuing decline in area of occupancy (AOO): Unknown
Extreme fluctuations in area of occupancy (AOO): No
Estimated extent of occurrence (EOO) - km2: 48
Continuing decline in extent of occurrence (EOO): Unknown
Extreme fluctuations in extent of occurrence (EOO): No
Number of Locations: 2
Continuing decline in number of locations: Unknown
Extreme fluctuations in the number of locations: No
Upper elevation limit (metres): 150
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: Playback surveys in lowland forests of Pernambuco and Alagoas states since 2004 have failed to locate this species (S. A. Roda in litt. 2006). Its known distribution is tiny and the extent of habitat in the region has been dramatically reduced, the remainder is severely fragmented. If it remains extant, its population is likely to number fewer than 50 individuals and mature individuals.

Trend Justification:  The species is suspected to be declining rapidly owing to the comprehensive loss of habitat within its restricted range (da Silva et al. 2002).

Current Population Trend: Decreasing
Additional data:
Number of mature individuals: 1-49 Continuing decline of mature individuals: Yes
Extreme fluctuations: No Population severely fragmented: Yes
No. of subpopulations: 2-100 Continuing decline in subpopulations: Unknown
Extreme fluctuations in subpopulations: No All individuals in one subpopulation: No

Habitat and Ecology [top]

Habitat and Ecology: It has been recorded in the canopy of old secondary forest where it was observed eating a cicada. An unconfirmed report suggests the species is vocal during the rainy months of April and May (S. A. Roda in litt. 2006, 2008). It has been recorded in forest up to 150 m but has not been found in other well-surveyed forests in the region at elevations between 400 and 600 m.

Systems: Terrestrial
Continuing decline in area, extent and/or quality of habitat: Yes
Generation Length (years): 3.8
Movement patterns: Not a Migrant

Threats [top]

Major Threat(s): The Pernambuco Center where this species was described is by far the most modified region of Atlantic Forest having declined in extent from c.39,500 km2 to c.1,900 km2 by 2002. The remainder is severely fragmented and legal restrictions have proven inadequate in halting deforestation from fire and illegal logging. Some suitable habitat does remain at the type locality (S. A. Roda in litt. 2006, 2008). Hunting is also reported to pose a threat to this species.

Conservation Actions [top]

Conservation Actions: Conservation Actions Underway
The species occurs in the 4.8 km2 Reserva Biológica de Saltinho. Approximately 240 km2 of the remaining 1,900 km2 of Pernambuco Atlantic Forest are protected within 52 reserves but these almost exclusively support small fragments. Legal restrictions exist to attempt to curb the rate of forest loss.

Conservation Actions Proposed
Protection of remaining lowland forest fragments in the area is urgently needed, along with more effective law enforcement to prevent illegal deforestation. Further surveys are required to locate other populations outside the known range; erecting nest boxes in potentially suitable forest fragments should be considered (C. Albano in litt. 2008) as well as using playback.

Citation: BirdLife International. 2012. Glaucidium mooreorum. The IUCN Red List of Threatened Species 2012: e.T22733081A37899425. . Downloaded on 13 October 2015.
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