Ecology

Habitat

Habitat and Ecology

Systems
  • Terrestrial
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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
LC
Least Concern

Red List Criteria

Version
3.1

Year Assessed
2012

Assessor/s
BirdLife International

Reviewer/s
Butchart, S. & Symes, A.

Contributor/s

Justification
This species has a very large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). Despite the fact that the population trend appears to be decreasing, the decline is not believed to be sufficiently rapid to approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size has not been quantified, but it is not believed to approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.
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Population

Population
The global population size has not been quantified, but this species is described as 'fairly common' (Stotz et al. (1996).

Population Trend
Decreasing
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Wikipedia

Rufescent Screech Owl

The rufescent screech owl (Megascops ingens) is a species of owl in the Strigidae family. It is found in Bolivia, Colombia, Ecuador, Peru, and Venezuela. This is one of the larger species of screech owls, similar in size to the white-throated screech owl. The overall length is 25 to 29 centimetres (9.8 to 11.4 in) and weight in males is 134–190 grams (4.7–6.7 oz) and 140–273 grams (4.9–9.6 oz) in females. It is sandy-brown above, vermiculated darker, the facial disc is sandy-brown, without a distinct rim. The flight feathers are barred cinnamon and dusky and the tail is cinnamon with darker brown bars. The hindcrown has buffy-whitish border. It has honey-brown eyes and small ear-tufts. The tarsi are feathered to the base of the toes.

Its natural habitat is subtropical or tropical moist montane forests, from elevations of 1,200 to 2,500 metres (3,900 to 8,200 ft).This relatively powerful bird is a strictly nocturnal bird that becomes active at dusk. During the daytime it mostly roosts among epiphytes on thick branches. Little is known about the life history of this bird. Larger insects and spiders are taken, as well as small vertebrates. The reproductive biology of this owl merits further study, but it will typically nest in a natural hole in a tree where it lays pure white eggs directly on the bottom of the cavity.

The rufescent screech owl is not considered a threatened species by the IUCN.

References[edit]

  • "Owls: A Guide to the Owls of the World" by Claus Konig, Friedhelm Welck & Jan-Hendrik Becking. Yale University Press (1999), ISBN 978-0-300-07920-3.


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