The Jamaican owl (''Asio grammicus'') is a medium-sized

owl Owls are birds from the order Strigiformes (), which includes over 200 species of mostly solitary and nocturnal birds of prey typified by an upright stance, a large, broad head, binocular vision, binaural hearing, sharp talons, and feathers a ...

that is

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...

to the island of

Jamaica Jamaica (; ) is an island country situated in the Caribbean Sea. Spanning in area, it is the third-largest island of the Greater Antilles and the Caribbean (after Cuba and Hispaniola). Jamaica lies about south of Cuba, and west of His ...

Taxonomy and systematics

The Jamaican owl was previously considered the only member of the

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

''Pseudoscops'', but phylogenetic analysis has reclassified it within ''

Asio ''Asio'' is a genus of typical owls, or true owls, in the family Strigidae. This group has representatives over most of the planet, and the short-eared owl is one of the most widespread of all bird species, breeding in Europe, Asia, North and S ...

''. It is

monotypic In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispec ...

Description

The Jamaican owl is long; one specimen of unstated sex weighed . This medium-sized owl has long ear tufts, dark brown eyes, and a rufous facial disk rimmed in black-flecked white. The adult's upperparts are rufous with fine dark brown

vermiculation Vermiculation is a surface pattern of dense but irregular lines, so called from the Latin ''vermiculus'' meaning "little worm" because the shapes resemble worms, worm-casts, or worm tracks in mud or wet sand. The word may be used in a number of ...

. The tail is also rufous, with dark brown bars. The breast and belly are rufous with narrow dark brown streaks. The juvenile's back is light grayish brown and the rest of its plumage is light cinnamon-buff.Olsen, P.D. and J. S. Marks (2021). Jamaican Owl (''Asio grammicus''), version 1.1. In Birds of the World (J. del Hoyo, A. Elliott, J. Sargatal, D. A. Christie, and E. de Juana, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.jamowl1.01.1 retrieved September 7, 2021

Distribution and habitat

The Jamaican owl is found throughout the island of Jamaica. It inhabits a variety of open and semi-open landscapes such as open woodland, forest edges, plantations, and gardens. It is primarily a bird of coastal and lowland areas, but can be found as high as of elevation in the mountains.

Behavior

Feeding

The Jamaican owl is nocturnal and eats mainly large

insect Insects (from Latin ') are pancrustacean hexapod invertebrates of the class Insecta. They are the largest group within the arthropod phylum. Insects have a chitinous exoskeleton, a three-part body ( head, thorax and abdomen), three pairs ...

s. Its diet also includes

spider Spiders ( order Araneae) are air-breathing arthropods that have eight legs, chelicerae with fangs generally able to inject venom, and spinnerets that extrude silk. They are the largest order of arachnids and rank seventh in total species ...

amphibian Amphibians are tetrapod, four-limbed and ectothermic vertebrates of the Class (biology), class Amphibia. All living amphibians belong to the group Lissamphibia. They inhabit a wide variety of habitats, with most species living within terres ...

lizard Lizards are a widespread group of squamate reptiles, with over 7,000 species, ranging across all continents except Antarctica, as well as most oceanic island chains. The group is paraphyletic since it excludes the snakes and Amphisbaenia alt ...

s, and

rodent Rodents (from Latin , 'to gnaw') are mammals of the order Rodentia (), which are characterized by a single pair of continuously growing incisors in each of the upper and lower jaws. About 40% of all mammal species are rodents. They are na ...

s. There is one record of its taking a bird, a Greater Antillean grackle (''Quiscalus niger'').

Breeding

The Jamaican owl's breeding

phenology Phenology is the study of periodic events in biological life cycles and how these are influenced by seasonality, seasonal and interannual variations in climate, as well as environmental factor, habitat factors (such as elevation). Examples includ ...

is poorly known. Nesting has been reported between March and October and egg-laying between December and June. It lays a clutch of two eggs in a tree cavity or a concealed tree-fork.

Vocalization

Adult Jamaican owls make a " gh, quivering hoot and guttural growl".

Status

The

IUCN The International Union for Conservation of Nature (IUCN; officially International Union for Conservation of Nature and Natural Resources) is an international organization working in the field of nature conservation and sustainable use of natu ...

has assessed the Jamaican owl as being of

Least Concern A least-concern species is a species that has been categorized by the International Union for Conservation of Nature (IUCN) as evaluated as not being a focus of species conservation because the specific species is still plentiful in the wild. T ...

. It is considered widespread and common, but "cutting of forest has probably reduced its range and numbers".

References

External links

Stamps
(for

)
Jamaican Owl photo gallery
VIREO
Photo-High Res--and Article
owlpages {{Taxonbar, from=Q1264898

Jamaican owl The Jamaican owl (''Asio grammicus'') is a medium-sized owl that is endemic to the island of Jamaica. Taxonomy and systematics The Jamaican owl was previously considered the only member of the genus ''Pseudoscops'', but phylogenetic analysis ...

Endemic birds of Jamaica

Taxobox binomials not recognized by IUCN