The flammulated owl (''Psiloscops flammeolus'') is a small migratory North American owl in the family

Strigidae The true owls or typical owls (family Strigidae) are one of the two generally accepted families of owls, the other being the barn owls (Tytonidae). This large family comprises 230 living or recently extinct species in 24 genera. The typical owl ...

. It is the only species placed in 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 ...

''Psiloscops''.

Taxonomy

The flammulated owl was formally described in 1852 by the German naturalist

Johann Jakob Kaup Johann Jakob von Kaup (10 April 1803 – 4 July 1873) was a German naturalist. A proponent of natural philosophy, he believed in an innate mathematical order in nature and he attempted biological classifications based on the Quinarian system. Kaup ...

under the

binomial name In taxonomy, binomial nomenclature ("two-term naming system"), also called nomenclature ("two-name naming system") or binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, bot ...

''Scops flammeola ''. He specified the type location as Mexico. This species was formerly placed with the scops owls in the

Otus Otus may refer to: * Otus (education), a K-12 educational technology company * HMS ''Otus'', two ships in the Royal Navy * ''Otus'' (bird), genus of owls * Otus (mythology), giant in Greek mythology, brother of Ephialtes, one of Aloadae * Otus ...

'' but is now placed in its own genus ''Psiloscops'' that was introduced in 1899 by

Elliott Coues Elliott Ladd Coues (; September 9, 1842 – December 25, 1899) was an American army surgeon, historian, ornithologist, and author. He led surveys of the Arizona Territory, and later as secretary of the United States Geological and Geographic ...

. The name ''Psiloscops'' combines the

Ancient Greek Ancient Greek includes the forms of the Greek language used in ancient Greece and the ancient world from around 1500 BC to 300 BC. It is often roughly divided into the following periods: Mycenaean Greek (), Dark Ages (), the Archaic peri ...

''psilos'' meaning "naked" or "smooth" with the genus name ''Scops'', a synonym of ''

''. The specific epithet ''flammeolus'' is

Latin Latin (, or , ) is a classical language belonging to the Italic branch of the Indo-European languages. Latin was originally a dialect spoken in the lower Tiber area (then known as Latium) around present-day Rome, but through the power of the ...

meaning "flame-coloured", "with flame-like markings" or "flammulated". The species 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 ...

: no subspecies are recognised. A

molecular phylogenetic Molecular phylogenetics () is the branch of phylogeny that analyzes genetic, hereditary molecular differences, predominantly in DNA sequences, to gain information on an organism's evolutionary relationships. From these analyses, it is possible to ...

study of the owls published in 2019 found that the flammulated owl is a

sister species In phylogenetics, a sister group or sister taxon, also called an adelphotaxon, comprises the closest relative(s) of another given unit in an evolutionary tree. Definition The expression is most easily illustrated by a cladogram: Taxon A and t ...

to the

Puerto Rican owl The Puerto Rican owl (''Gymnasio nudipes'') or ''múcaro común'' (Spanish via Taino), formerly known as the Puerto Rican screech owl, is a mid-sized "true owl" in the subfamily Striginae. It is endemic to the island of Puerto Rico, though it ...

(''Gymnasio nudipes'').

Description

The flammulated owl is a small,

nocturnal Nocturnality is an animal behavior characterized by being active during the night and sleeping during the day. The common adjective is "nocturnal", versus diurnal meaning the opposite. Nocturnal creatures generally have highly developed sens ...

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 ...

approximately long with a wingspan. With such large wings for a small body, they can fly rapidly from tree to tree. Males and females can be distinguished by their weight. Females are larger, ranging from and males are smaller ranging from . The owl gets the name flammulated from the flame-like markings on its face.Biemiller, L.(2003). ''Night Vigil. Chronicle of Higher Education'', 49 (44),A40. The flammulated owl is similar in appearance to the

western screech owl The western screech owl (''Megascops kennicottii'') is a small owl native to North and Central America, closely related to the eastern screech owl. The scientific name commemorates the American naturalist Robert Kennicott. Description Length a ...

, but is only about one-quarter the mass, lacks large ear tufts (but has small ear tufts that are barely visible), and has dark eyes and a different voice. The

elf owl The elf owl (''Micrathene whitneyi'') is a small grayish-brown owl about the size of a sparrow found in the Southwestern United States, central Mexico, and the Baja California peninsula. It has pale yellow eyes highlighted by thin white "eyebrow ...

is smaller and the

mountain pygmy owl The mountain pygmy owl (''Glaucidium gnoma'') is a small species of owl from the family Strigidae. They reside throughout southern Arizona, New Mexico and Mexico. There is current taxonomic debate regarding its classification as an independent s ...

is about the same size. The call is a series of relatively deep, single or double hoots.

Distribution and habitat

It breeds from southern

British Columbia British Columbia (commonly abbreviated as BC) is the westernmost province of Canada, situated between the Pacific Ocean and the Rocky Mountains. It has a diverse geography, with rugged landscapes that include rocky coastlines, sandy beaches, ...

and the

western United States The Western United States (also called the American West, the Far West, and the West) is the region comprising the westernmost states of the United States. As American settlement in the U.S. expanded westward, the meaning of the term ''the Wes ...

to central

Mexico Mexico (Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatema ...

. It is a neotropical migrant and winters south of the United States, but also in

South Texas South Texas is a region of the U.S. state of Texas that lies roughly south of—and includes—San Antonio. The southern and western boundary is the Rio Grande, and to the east it is the Gulf of Mexico. The population of this region is about 4.96 ...

Arizona Arizona ( ; nv, Hoozdo Hahoodzo ; ood, Alĭ ṣonak ) is a state in the Southwestern United States. It is the 6th largest and the 14th most populous of the 50 states. Its capital and largest city is Phoenix. Arizona is part of the Fou ...

, and

California California is a U.S. state, state in the Western United States, located along the West Coast of the United States, Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the List of states and territori ...

. Unlike many owls, they are migratory, leaving Canada and the United States in the fall. In the winter, they are found in northern

Central America Central America ( es, América Central or ) is a subregion of the Americas. Its boundaries are defined as bordering the United States to the north, Colombia to the south, the Caribbean Sea to the east, and the Pacific Ocean to the west. ...

, from southern Mexico to

Guatemala Guatemala ( ; ), officially the Republic of Guatemala ( es, República de Guatemala, links=no), is a country in Central America. It is bordered to the north and west by Mexico; to the northeast by Belize and the Caribbean; to the east by H ...

and

El Salvador El Salvador (; , meaning " The Saviour"), officially the Republic of El Salvador ( es, República de El Salvador), is a country in Central America. It is bordered on the northeast by Honduras, on the northwest by Guatemala, and on the south b ...

. They leave their breeding grounds in August to head to their wintering areas, and then return to their breeding grounds in late April and early May.Samson, F. B. (2005). A Conservation assessment of the northern goshawk, blacked-backed woodpecker, flammulated owl, and pileated woodpecker in the Northern Region, USDA Forest Service. Unpublished report on file, Northern Region, Missoula, Montana, USA.

Behaviour and ecology

Breeding

The flammulated owl nests in tree cavities and has two to four young at a time after a 26-day incubation period. The young are able to forage for their own prey after about 25–32 days. These owls are obligate cavity nesters, meaning they only create nests in tree cavities. Females usually select cavities that used to be woodpecker or northern flicker nests. Their nests are bare and have no nesting material. Flammulated owls tend to form breeding pairs with unoccupied habitat between breeding clusters. Marti, C. Flammulated Owls (''Otus flammerlous'') breeding in deciduous forests. Unlike most owls, the Flammulated Owl often nests in loose colonies. According to EBird.org, One observation group once found 47 singing birds along a five mile stretch of road near Provo, UT. They tend to have one clutch of eggs annually. Like other raptors, they can live long and have high nesting success, and during the nesting period, the female owls rely on the males to forage for them. Nesting habitat in the western U.S. and Canada is usually mature, open

ponderosa pine ''Pinus ponderosa'', commonly known as the ponderosa pine, bull pine, blackjack pine, western yellow-pine, or filipinus pine is a very large pine tree species of variable habitat native to mountainous regions of western North America. It is the ...

and

Douglas fir The Douglas fir (''Pseudotsuga menziesii'') is an evergreen conifer species in the pine family, Pinaceae. It is native to western North America and is also known as Douglas-fir, Douglas spruce, Oregon pine, and Columbian pine. There are three va ...

forests. Flammulated owls can also be found breeding in deciduous forests with some conifers present. In deciduous habitat, they can still breed productively.

Food and feeding

They feed almost entirely on insects, but very occasionally eat small mammals such as shrews and other small rodents. The insects they eat mostly consist of small

Lepidoptera Lepidoptera ( ) is an order (biology), order of insects that includes butterfly, butterflies and moths (both are called lepidopterans). About 180,000 species of the Lepidoptera are described, in 126 Family (biology), families and 46 Taxonomic r ...

. They also eat crickets and beetles.

Conservation status

Currently, the

International Union for Conservation of Nature 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 ...

lists the flammulated owl as a species 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 ...

, but populations may be declining in some areas. Juvenile flammulated owl2

References

External links

USGS Identification TipsRangeMap & synopsis
InfoNatura NatureServe

- VIREO * ttps://web.archive.org/web/20060710160106/http://greglasley.net/Images/Flammulated-Owl-0002.jpg Photo-High Resbr>Article & short synopsis
- Photo gallery
A recording of the flammulated owl's hoots at the Cornell Lab of Ornithology
{{Taxonbar, from=Q27074736

flammulated owl The flammulated owl (''Psiloscops flammeolus'') is a small migratory North American owl in the family Strigidae. It is the only species placed in the genus ''Psiloscops''. Taxonomy The flammulated owl was formally described in 1852 by the Germ ...

Native birds of Western Canada Native birds of the Western United States Birds of Mexico

Birds of the Sierra Madre Occidental Birds of the Sierra Madre Oriental Birds of the Sierra Madre del Sur Birds of the Trans-Mexican Volcanic Belt