Basic knowledge of the ecology of bobwhite quail, colinus virginianus (L.), on the Salamonie Reservoir Area, Huntington and Wabash Counties, Indiana, was gathered during 1970-1975. The bobwhite is a major gamebird species on the Salamonie Reservoir Area even though the resident populations of this non-migratory bird tend to remain relatively low. Bobwhites have been extensively studied in other parts of their range but little has been done in this marginal habitat region of northeastern Indiana. A basic knowledge of bobwhite ecology in this region is necessary in order to formulate management plans calculated to increase the population level.The whistling cock count technique was used to determine a call index from the average mean calls per stop. This technique correlated significantly with hunter success (P<0.05) but call indices from the highest count day, during the six-year period, correlated most significantly (P<0.001) with hunter success.An average of 50.2 percent cocks to 49.8 percent hens was found during the six-year study in 404 hunter-killed bobwhites and 36 bobwhites collected by me. Bobwhite weights averaged 179 g during the November months, 197 g during the December months, 205 g during the January months, and 185 g during the months of February and March. The mean average weight for the six-year study was 185 g. Age ratio, during the study months, was 3.66 young bobwhites to one adult. Age ratios were stable each November through March but they fluctuated annually during the six-year period with no consistant trend. Four major food items comprised 77.5 percent of volumetric contents found in bobwhite crops: corn, soybeans, wheat, and black locust seeds.Bobwhite population levels fluctuated during the six-year study. The population level appeared to have an inverse relationship with the number of small game hunting efforts on the Salamonie Reservoir Area when the small game hunting efforts numbered above 3,000.Bobwhites fed on black locust seeds during periods of snow cover. The availability of black locust seeds during winter months made this food source an important item for the survival of bobwhites on the Salamonie Reservoir Area.

Thesis (Ph.D.)--University of Missouri-Columbia, 2006. / The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on May 6, 2009) Vita. Includes bibliographical references.

Master of Science / Division of Biology / Brett K. Sandercock / Grassland birds have experienced population declines worldwide from habitat degradation caused by conversion to agriculture and recent intensification of land use, including increased use of fertilizer, fossil fuels, and irrigation. The U.S. Department of Agriculture, Conservation Reserve Program (CRP) includes initiatives targeting wildlife enhancement to mitigate ongoing declines in grassland bird populations. The newest CRP practice, State Acres for Wildlife Enhancement (SAFE), was designed to restore vital habitats for high priority wildlife species throughout the United States. Our objective was to assess the potential benefits of SAFE for upland gamebirds and grassland songbirds in Kansas. We monitored lands enrolled in SAFE to estimate bird density based on field scale and landscape scale characteristics. Our study was conducted in three ecoregions: Smoky Hills (4 counties), Flint Hills (3 counties), and the High Plains (3 counties). We surveyed 121 SAFE fields and 49 CRP fields from 2012 – 2013. Northern Bobwhite density was negatively associated with percent litter within survey fields. Ring-necked Pheasant density differed among ecoregions, and was positively associated with percent bare ground in the High Plains, but negatively associated with field age in the Smoky Hills. Mourning Dove density differed among ecoregions, and was negatively associated with percent forb in the High Plains, and positively associated with percent grassland in the Smoky Hills. In the Flint Hills, Mourning Doves were negatively associated with CRP fields and large fields. Brown-headed Cowbirds were positively associated with percent forbs. Amount of CRP surrounding survey locations was positively associated with bird density through the entire range for Grasshopper Sparrows, Dickcissels, and Lark Buntings, and in the High Plains for Western Meadowlarks. Percent woodland had negative effects on Western Meadowlarks in the Smoky Hills, whereas percent cropland had negative effects on Eastern Meadowlarks statewide. CRP positively affected abundance of four of our species, whereas percent cropland and woodland negatively affected others. Thus, the amount of set-aside lands enrolled in SAFE could be important for grassland bird populations. SAFE and CRP supported equal numbers of Northern Bobwhites and Ring-necked Pheasants, suggesting SAFE provides benefits for target species of upland gamebirds.