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At least 1,765 records · Page 98Linked to original sources
USGS2020

The effects of management practices on grassland birds—Savannah Sparrow ( Passerculus sandwichensis )

Keys to Savannah Sparrow ( Passerculus sandwichensis ) management are providing extensive grasslands of intermediate height and density with a well-developed litter layer, controlling succession, and protecting nesting habitat from disturbance during the breeding season. Savannah Sparrows have been reported to use habitats with 11–190 centimeters (cm) average vegetation height, 4–50 cm visual obstruction reading (VOR), 15–66 percent grass cover, 4–45 percent forb cover, less than (<) 29 percent shrub cover, <38 percent bare ground, 10–63 percent litter cover, and less than or equal to (≤) 21 cm litter depth.

Professional Paper↗
USGS2019

The effects of management practices on grassland birds—Long-billed Curlew ( Numenius americanus )

Keys to Long-billed Curlew ( Numenius americanus ) management include providing large, open, level to gently rolling grasslands with short vegetation, and tailoring grazing regimes to local conditions. Long-billed Curlews have been reported to use habitats with 3–75 centimeters (cm) average vegetation height, less than or equal to 27 cm visual obstruction reading, 20–71 percent grass cover, 4–50 percent forb cover, 2–12 percent shrub cover, 7–40 percent bare ground, and less than 3 cm litter depth.

Professional Paper↗
USGS2021

The effects of management practices on grassland birds—Grasshopper Sparrow ( Ammodramus savannarum )

The key to Grasshopper Sparrow ( Ammodramus savannarum ) management is providing large areas of contiguous grassland of intermediate height with moderately deep litter and low shrub density. Grasshopper Sparrows have been reported to use habitats with 8–166 centimeters (cm) average vegetation height, 4–80 cm visual obstruction reading, 12–95 percent grass cover, 4–40 percent forb cover, less than 35 percent shrub cover, less than or equal to (≤) 38 percent bare ground, 5–61 percent litter cover, and ≤9 cm litter depth.

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USGS2019

The effects of management practices on grassland birds—Marbled Godwit ( Limosa fedoa )

Keys to Marbled Godwit ( Limosa fedoa ) management include providing large expanses of short, sparsely to moderately vegetated landscapes that include native grasslands and wetland complexes. Optimal wetland complexes should contain a diversity of wetland classes and sizes, such as ephemeral, temporary, seasonal, semipermanent, permanent, and alkali wetlands, as well as intermittent streams. Marbled Godwits use wetlands of various salinities. The species has been reported to use habitats with less than or equal to 70 centimeters (cm) average vegetation height, 4–23 cm visual obstruction reading, and 1–9 cm litter depth.

Professional Paper↗
USGS2020

The effects of management practices on grassland birds—Baird’s Sparrow ( Centronyx bairdii )

Keys to Baird’s Sparrow ( Centronyx bairdii ) management are providing native or tame grasslands with moderately deep litter, controlling excessive grazing, and curtailing shrub encroachment. Baird’s Sparrows have been reported to use habitats with less than or equal to (≤) 101 centimeters (cm) average vegetation height, 3–46 cm visual obstruction reading (VOR), 15–71 percent grass cover, 5–25 percent forb cover, ≤50 percent shrub cover, less than (<) 44 percent bare ground, 10–63 percent litter cover, and ≤21 cm litter depth.

Professional Paper↗
USGS2019

The effects of management practices on grassland birds—Willet ( Tringa semipalmata inornata )

Keys to Willet ( Tringa semipalmata inornata ) management include providing large expanses of native grasslands and wetland complexes. Wetland complexes should contain a diversity of wetland sizes and classes, such as ephemeral, temporary, seasonal, semipermanent, and permanent wetlands, as well as intermittent streams. Willets use wetlands of various salinities. Willets require short, sparse upland grasslands for nesting and foraging and wetland complexes for foraging. Broods use taller, denser grass cover than do nesting adults. Willets have been reported to use habitats with less than or equal to 70 centimeters (cm) average vegetation height, 4–23 cm visual obstruction reading, 15 percent bare ground, 38 percent litter cover, and 1–9 cm litter depth.

Professional Paper↗
USGS2019

The effects of management practices on grassland birds—Henslow’s Sparrow ( Centronyx henslowii )

Keys to Henslow’s Sparrow ( Centronyx henslowii ) management are providing large grasslands with tall, dense, herbaceous vegetation and well-developed litter; avoiding habitat disturbances during the breeding season; and controlling plant succession. Henslow’s Sparrows have been reported to use habitats with less than or equal to (≤) 122 centimeters (cm) average vegetation height, 25–80 cm visual obstruction reading, 35–51 percent grass cover, 10–55 percent forb cover, ≤2 percent shrub cover, ≤5 percent bare ground, 15–30 percent litter cover, and less than 13 cm litter depth.

Professional Paper↗
USGS2019

The effects of management practices on grassland birds—Wilson’s Phalarope ( Phalaropus tricolor )

The key to Wilson’s Phalarope ( Phalaropus tricolor) management is providing wetland complexes containing suitable wetland characteristics (that is, open water, emergent vegetation, and open shoreline) and upland habitat (native grassland or tame hayland) throughout the breeding season. Wilson’s Phalaropes have been reported to use habitats with 15–32 centimeters (cm) average vegetation height, 8–18 cm visual obstruction reading, 45–53 percent grass cover, 19–22 percent forb cover, and less than 3 cm litter depth.

Professional Paper↗
USGS2020

The effects of management practices on grassland birds—LeConte’s Sparrow ( Ammospiza leconteii )

Keys to LeConte’s Sparrow ( Ammospiza leconteii ) management include controlling succession and providing uplands and lowlands with tall, thick herbaceous vegetation and thick litter. LeConte’s Sparrows have been reported to use habitats with 30–90 centimeters (cm) average vegetation height, 19–41 cm visual obstruction reading, 35–43 percent grass cover, 16–27 percent forb cover, less than (<) 18 percent shrub cover, <4 percent bare ground, 39–45 percent litter cover, and 2–6 cm litter depth.

Professional Paper↗
USGS2020

The effects of management practices on grassland birds—Nelson’s Sparrow ( Ammospiza nelsoni nelsoni )

The key to Nelson’s Sparrow ( Ammospiza nelsoni nelsoni ) management is providing dense grasses or emergent vegetation near damp areas or freshwater wetlands. Nelson’s Sparrows have been reported to use habitats with 20–122 centimeters (cm) average vegetation height, 41 cm visual obstruction reading, 40–58 percent grass cover, 24 percent forb cover, 5 percent shrub cover, 13 percent bare ground, and 2–7 cm litter depth.

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USGS2019

The effects of management practices on grassland birds—Northern Harrier ( Circus hudsonius )

The key to Northern Harrier ( Circus hudsonius ) management is providing tall, dense vegetation in extensive mesic or xeric grasslands or in wetlands. Northern Harriers have been reported to use habitats with 15–106 centimeter (cm) average vegetation height, 28–75 cm visual obstruction reading, 24–53 percent grass cover, 18–25 percent forb cover, less than or equal to 2 percent shrub cover, 3–5 percent bare ground, 23–30 percent litter cover, and 2–6 cm litter depth.

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USGS2023

The effects of management practices on grassland birds—Bobolink ( Dolichonyx oryzivorus )

Keys to Bobolink ( Dolichonyx oryzivorus ) management are providing large areas of suitable habitat (for example, native or tame grasslands of moderate vegetative height and density, low shrub density, and moderate litter and forb cover), and protecting nesting habitat from disturbance during the breeding season. Bobolinks have been reported to use habitats with 10–166 centimeters (cm) average vegetation height, 6–75 cm visual obstruction reading, 17–65 percent grass cover, 3–50 percent forb cover, less than or equal to (≤) 22 percent shrub cover, ≤38 percent bare ground, 5–39 percent litter cover, and ≤9 cm litter depth.

Professional Paper↗
USGS2019

The effects of management practices on grassland birds—Eastern Meadowlark ( Sturnella magna )

The key to Eastern Meadowlark ( Sturnella magna ) management is providing large areas of contiguous grassland of moderate height with significant grass cover and moderate forb density. Eastern Meadowlarks have been reported to use habitats with 10–187 centimeters (cm) average vegetation height, 6–88 cm visual obstruction reading, 53–86 percent grass cover, 4–50 percent forb cover, less than or equal to (≤) 4 percent shrub cover, less than 38 percent bare ground, 6–23 percent litter cover, and ≤13 cm litter depth.

Professional Paper↗
USGS2023

The effects of management practices on grassland birds—Golden Eagle (Aquila chrysaetos)

Keys to Golden Eagle ( Aquila chrysaetos ) management in western North America’s grasslands, particularly those of the Great Plains region, include maintaining open, mostly undeveloped landscapes that sustain at least modest population levels of suitable prey (most typically rabbits [Leporidae] and prairie dogs or ground squirrels [Sciuridae]); safeguarding nesting territories (that is, breeding areas), especially nest structures within territories, from human disturbances; mitigating major sources of anthropogenic mortality, particularly electrocution on powerlines, shooting, collisions with structures and vehicles, and poisoning by lead and rodenticides; and averting climate change.

Professional Paper↗
USGS2023

The effects of management practices on grassland birds—Dickcissel ( Spiza americana )

Keys to Dickcissel ( Spiza americana ) management include providing dense, moderate-to-tall vegetation, particularly with a well-developed forb component, and moderately deep litter. Dickcissels have been reported to use grassland habitats with 4–166 centimeters (cm) average vegetation height, 6–85 cm visual obstruction reading, 11–68 percent grass cover, 1–86 percent forb cover, less than or equal to (≤) 10 percent shrub cover, less than (<) 27 percent bare ground cover, <30 percent litter cover, and ≤ 6 cm litter depth.

Professional Paper↗