The long-term decline of early successional landscapes along migratory routes and in Field Sparrow wintering grounds are likely decreasing the quantity of available migratory and winter habitat and thereby increasing rates of adult and juvenile mortality.
Field Sparrow reproductive success and nesting ecology.
In contrast, both the ladder-backed woodpecker and field sparrow
also exhibited longer term (1966-2004) declines on the Edwards Plateau (Rocky Mountain Bird Observatory, http://www.
Nest survival in an earlier study of Field Sparrow
and Indigo Bunting in Missouri old-field habitats (Burhans et al.
Chestnut-sided Warbler, Field Sparrow
, Indigo Bunting).
uses abandoned nest for August brood.
savannarum), Field Sparrow
(Spizella pusilla), Dickcissel (Spiza americana) and Eastern Meadowlark (Sturnella magna) nests at Fort Campbell from 1999 through 2003.
canadensis) 215 5/16 Scarlet Tanager (Piranga olivacea) 265 5/20 Eastern Towhee (Pipilio erythrophthalmus) 208 5/19 Chipping Sparrow (Spizella passerina) 457 5/4 Field Sparrow
Because we found large numbers of Field Sparrow
(Spizella pusilla), Ammodramus spp.
Six species had Combined Scores of 12 and Trend Scores of 5, including Northern Bobwhite (Colinus virginianus), Loggerhead Shrike (Lanius ludovicianus), Field Sparrow
(Spizella pusilla), Lark Sparrow (Chondestes grammacus), Black-throated Sparrow (Amphispiza bilineata), and Grasshopper Sparrow (Ammodramus savannarum).
We figured 105 was a nice, round number, but the reliable field sparrows
failed to materialize.
2007), red-winged blackbirds (Agelauis phonecius; Facemire and Fretwell, 1980), field sparrows
(Spizella pusilla; Stake et al.
The animals that use my grasslands include field sparrows
, bobolinks, eastern meadowlarks, red wing blackbirds, blue birds, purple martins, barn swallows, pheasants, sand hill cranes, herons, red tailed hawks, sparrow hawks, rodents, rabbits, ground hogs, deer, mink, coyotes, and at least five species of snakes.
Red-winged blackbirds, song sparrows (Melospiza melodia), eastern Meadowlarks, European starlings (Sturnus vulgaris) and Field Sparrows
(Spizella pusilla) were generally the most abundant species on the control plotsduring both years, although Henslow's sparrows and bobolinks were prominent in 1998 (Fig.
Populations of Field Sparrows
(Spizella pusilla) were quite low at the Barrens GHMA prior to the fourth cutting cycle in 1999-2000; subsequent to this cycle, populations increased significantly (Yahner 2003) and have not changed since, based on results obtained in the present study.