Recent Streaked Horned Lark research has focused on documenting changes in the subspecies breeding range (Rogers 2000), inventorying A spatial model of streaked horned lark breeding habitat in the Columbia River, USA. E.a.alpine prefers dry, lichen-encrusted alpine habitats at high elevations in volcanic rain shadows. (Data about data or how the map was made). Streaked horned lark (E. a. strigata) – (Henshaw, 1884) ... Interactive range map of Eremophila alpestris at IUCN Red List maps This page was last edited on 23 October 2020, at 18:33 (UTC). Share sensitive information only on official, secure websites. Horned Lark distribution map. Text edited by Gussie Litwer Maps | ) or https:// means you’ve safely connected to the .gov website. A lock ( The best model contained terrain ruggedness, deposition age, vegetation greenness (e.g., lushness and density of vegetation) inside a 10-m cell, and heterogeneity in greenness within a 100-m radius. Author links open overlay panel James R. Hatten a Gary L. Slater b Jerrmaine L. Treadwell b Matthew R. Stevenson c. Model results will facilitate conservation planning decisions by informing real-time management decisions. Nesting failure due to agricultural practices (e.g., mowing, haying, spraying) and predation at nest sites contributes to low reproductive success. Habitats used during non-breeding months and migratory rest-stops were not mapped. Streaked Horned Larks have large area requirements. Translated from the Washington Gap Analysis Bird Volume by Uchenna Bright It is listed as threatened under the federal Endangered Species Act and by the State of Washington. Resources, Legend: The streaked horned lark (hereafter “lark”; Eremophila alpestris strigata) is a federally listed bird subspecies of the Pacific Northwest that occupies open landscapes with short vegetation and abundant bare ground. E.a.alpine (Pallid Horned Lark): Locally common breeder in dry alpine habitats and very high elevations, and usually associated with rain shadows of major volcanoes, at high elevations in the northeastern Cascades and northeast Olympics. identified using 1991 satellite imagery, The focus of our study is the lower Columbia River where larks primarily occupy deposition islands created as a byproduct of shipping channel deepening (dredging) projects. Legend: = Core Habitat = Marginal Habitat. = Marginal Habitat. Streaked Horned Larks had significantly lower values in all measures of reproductive success when compared to both the guild and Savannah Sparrows. E.a.strigata: Good habitats in core zone were grasslands, riparian habitats along the Columbia river (which include sand bars, wet grassy meadows, and adjacent south-facing grassy slopes on steep river banks), and ocean dunes with grass, but limited to sites with evidence of recent breeding. The Streaked Horned Lark (Eremophila alpestris strigata) is a rare subspecies of the Horned Lark that breeds and winters in Oregon and Washington. We challenged probability models the year they were constructed (2016) and the following year (2017) with set-aside survey data. The streaked horned lark (hereafter “lark”; Eremophila alpestris strigata) is a federally listed bird subspecies of the Pacific Northwest that occupies open landscapes with short vegetation and abundant bare ground. E.a.strigata historically occurred in prairies throughout the Puget Trough. It is a small, brown, yellow, and white bird with a distinctive black facial mask and black headband, … The widespread E.a.merrilli of eastern Washington utilizes disturbed grass patches and may benefit from some introduced plant species. The streaked horned lark is endemic to the Pacific Northwest, and is a subspecies of the wide-ranging horned lark. Breeding Bird Atlas (BBA), other datasets and experts throughout the state, as part of the Washington Gap Analysis They are known to overwinter in Oregon and on some of the lower Columbia River sites.

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