Жабылақты кенелеуші (Xenops rutilans) туралы

Species of bird

The streaked xenops (Xenops rutilans) is a passerine bird in the Furnariinae subfamily of the ovenbird family Furnariidae. It is found in the New World from Costa Rica and Trinidad south to Bolivia and Argentina.

Early on the streaked xenops was assigned the binomial Xenops rutilus. In the mid 1900s taxonomists began using X. rutilans. By the principle of priority the earlier rutilus is correct but because of the long usage of rutilans most systems have stayed with that specific epithet. A major exception is BirdLife International's Handbook of the Birds of the World (HBW), which uses X. rutilus. The other 10 subspecies of the streaked xenops differ in varying degrees from the nominate, though much of the differences fall within the variability of the nominate's plumage. The differences tend to be in the intensity of the rufous of the upperparts, the size and exact color of the underparts' streaks, and the exact base color of the underparts.

The streaked xenops is a year round resident throughout its range.

The streaked xenops' breeding season has not been determined in most of its range. In Costa Rica it spans from January to May and on Trinidad from February to May. It nests in a cavity, whether natural, excavated by a small woodpecker, or excavated itself, and adds a small amount of soft plant fiber to the bottom. Nests have been noted between above the ground. The clutch size is two or three eggs. The incubation period, time to fledging, and details of parental care are not known.

The song of the streaked xenops is "an ascending and then descending, high pitched series of 5–10 dry, squeaky 'swee' or 'zeet' notes, accelerating at [the] end". Its calls are "a high, piercing 'peet' or 'cheet' ".

The IUCN has assessed the streaked xenops as being of Least Concern. It has an extremely large range and its estimated population of at least five million mature individuals is believed to be stable. No immediate threats have been identified. It is considered uncommon to fairly common across most of its range and occurs in many protected areas. It "[a]ppears fairly tolerant of habitat disturbance; survives in small and degraded forest fragments, although in some cases at lower densities".