Nashville Warbler (Crum Woods Biodiversity Guide)

Nashville Warbler

Oreothlypis ruficapilla

Summary ⁴

The Nashville Warbler (Oreothlypis ruficapilla) is a small songbird in the New World warbler family.

Oreothlypis ruficapilla ⁵

A small (4 ¾ inches) wood warbler, the male Nashville Warbler is most easily identified by its dull green wings and body, bright yellow breast, gray face, and white eye-ring. The female is similar to the male, but is duller below and on the head. This species is most easily separated from the similar-looking Connecticut Warbler (Oporornis agilis) by the latter species’ dark gray throat present in both sexes. The Nashville Warbler breeds across much of southern Canada and the northeastern United States. Another population breeds in the west from southern British Columbia south to northern California (locally in the mountains to southern California and Nevada). In winter, the eastern population migrates south to Mexico, Central America, and coastal Texas, while the western population migrates to the coast of California. Nashville Warblers breed in a variety of open forest habitat types, ranging from spruce and tamarack forests in the north to oak and pine forests in California. In winter, this species occurs in semi-open portions of humid tropical forests. Nashville Warblers eat small invertebrates, primarily insects (including caterpillars) and spiders. Due to this species’ preference for heavily vegetated habitats, Nashville Warblers are much more easily heard than seen. Birdwatchers may listen for this species’ “seebit, sebit, sebit, sebit, titititititi” song, or may attempt to observe it foraging for insects in the forest canopy. Nashville Warblers are primarily active during the day, but, like many migratory songbirds, this species migrates at night.

Habitat ⁶

Comments: Forest-bordered bogs, second growth, open deciduous and coniferous woodland, forest edge and undergrowth, cutover or burned areas; in migration and winter in various woodland, scrub, and thicket habitats. Nests on ground at base of bush, small tree, sapling, or clump of grass, or in hollow in moss.

Iucn red list assessment ⁷

Red List Category

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 an extremely 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). The population trend appears to be increasing, and hence the species does not approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size is extremely large, and hence does not 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.

History

Least Concern (LC)
Least Concern (LC)
Least Concern (LC)
Lower Risk/least concern (LR/lc)
Lower Risk/least concern (LR/lc)
Lower Risk/least concern (LR/lc)

Sources and Credits

(c) Laura Gooch, some rights reserved (CC BY-NC-SA), http://www.flickr.com/photos/19474221@N08/4862883389
(c) Jerry Oldenettel, some rights reserved (CC BY-NC-SA), http://farm6.static.flickr.com/5146/5684499579_46eb2fb842.jpg
(c) Gonzalo Zepeda Martínez, some rights reserved (CC BY-SA), uploaded by Gonzalo Zepeda Martínez
Adapted by Amanda Carrillo-Perez from a work by (c) Wikipedia, some rights reserved (CC BY-SA), http://en.wikipedia.org/wiki/Oreothlypis_ruficapilla
(c) Smithsonian Institution, some rights reserved (CC BY-NC-SA), http://eol.org/data_objects/34818217
(c) NatureServe, some rights reserved (CC BY-NC), http://eol.org/data_objects/28864676
(c) International Union for Conservation of Nature and Natural Resources, some rights reserved (CC BY-NC-SA), http://eol.org/data_objects/34775134