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Flammulated owl
The flammulated owl (''Psiloscops flammeolus'') is a small, nocturnal owl approximately long with a wingspan. 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 (Bremiller, 2003). It breeds from southern British Columbia and the western United States to central Mexico. It is a neotropical migrant and winters south of the United States but also in Southern Texas, Arizona, and California (Verna,). 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, from southern Mexico to Guatemala and El Salvador. Flammulated owls 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, 2005). The flammulated owl is similar in appearance to the western screech owl but is only about one-quarter the mass, lacks large ear tufts (but has small ear tufts that are barely visible), has dark eyes and a different voice. The elf owl is smaller and the mountain pygmy owl is approximately the same size. The call is a series of relatively deep single or double hoots.
==Nesting==
The flammulated owl nests in tree cavities and has 2–4 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 (Samson, 2005). These owls are obligate cavity nesters meaning they will only create nests in tree cavities and no where else, (Linkhart & Renyolds, 2007). Females usually select cavities that used to be woodpecker or northern flicker nests(Samson, 2005). Their nests are bare and have no nesting material. Flammulated owls tend to form breeding pairs with unoccupied habitat between breeding clusters (Marti). They tend to have one clutch of eggs annually. Like other raptors they can live long and have high nesting success, (Linkhart & Renyolds, 2007). During the nesting period the female owls rely on the males to forage for them, (Linkhart & Renyolds, 2007).
Nesting habitat in the western U.S. and Canada is usually mature, open ponderosa pine and Douglas-fir forests. Flammulated owls can also be found breeding in deciduous forests with some conifers present (Marti). In deciduous type habitat flammulated owls can still be productive in terms of breeding.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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