Download or read book Duck Productivity and Nest Predation in Southeastern Idaho written by Randall J. Gazda and published by . This book was released on 1994 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wildlife Review written by and published by . This book was released on 1995 with total page 930 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Implications of Marsh Management Strategies on the Nesting and Brood Ecology of Selected Duck Species in Southeastern Idaho written by Ronald W. Tressler and published by . This book was released on 1987 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Breeding Productivity Nest Distribution and Population Ecology of Wood Ducks in Floodplain and Upland Forests of Southern Illinois written by Robert Gray Anderson and published by . This book was released on 2010 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wood ducks are thought to depend on mature hardwood forests juxtaposed with palustrine wetlands, but these habitats have been continuously degraded or destroyed since European settlement. Wood ducks are adaptable and the use of marginal habitats and nest boxes has extended their range. Until now, no study has analyzed the contribution of upland nesting to local population growth and maintenance. This paper investigates predation effects on nest site selection using wood duck nests and simulated nests placed in natural cavities. Logistic regression models of simulated nest data indicated cavity security could be important in the fragmented floodplain forests of Union County Conservation Area (UCCA). No physical characteristics of wood duck nest cavities differentiated successful and unsuccessful nesting attempts. Hens nesting in the area appear to have adapted to predation pressure by nesting in more secure floodplain cavities at UCCA or by nesting in the upland habitats. Floodplain and upland habitats are ecologically intertwined and the local wood duck population would not survive if either habitat were destroyed or severely degraded.

Download or read book Preliminary Keys to Waterfowl Age and Sex Identification by Means of Wing Plumage written by Samuel M. Carney and published by . This book was released on 1964 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Woodcock Status Report 1963 written by and published by . This book was released on 1963 with total page 1182 pages. Available in PDF, EPUB and Kindle. Book excerpt: An index of woodcock reproductive success in 1961 and 1962 was obtained from age ratios in the hunting kill as determined from wings. For both seasons combined, hunters contributed 25,426 woodcock wings.

Download or read book Special Scientific Report wildlife written by and published by . This book was released on 1966 with total page 612 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Pacific Waterfowl Flyway Report written by and published by . This book was released on 1963 with total page 844 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Special Scientific Report wildlife written by U.S. Fish and Wildlife Service and published by . This book was released on 1982 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Transactions of the North American Wildlife and Natural Resources Conference written by and published by . This book was released on 1996 with total page 594 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes another issue of 1936 ed. without illus.

Download or read book Waterfowl Status Report written by and published by . This book was released on 1964 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Nesting Behavior and Productivity of the Wood Duck A i x S p o n s a Linnaeus Aves Anitidae in Madison County Kentucky with Observations of Nest Box Utilization written by Larry Joseph Hindman and published by . This book was released on 1975 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wood duck (Aix sponsa) nesting behavior, nest box production and utilization was studied from 1972 to 1974 on three areas in Madison County, Kentucky. Spring arrival of wood ducks occurred in late February and early March. Nest searching began the second week of March. The dates of first laying varied from March 21 to March 23. Egg laying reached a peak in late March. Eggs were deposited at the rate of one egg per day. Average clutch size of all wood duck nests was 12.2 eggs. Average clutch size of normal nests was 11.5 eggs. Clutch size varied from 9 to 20 eggs. One dump nest was discovered. The mean incubation period was 30.3 days. The positions of wood duck eggs changed daily during incubation. A total of 117 wood duck eggs were laid in nest boxes and 77 ducklings left the boxes. Hatching success was 65.8 percent. Three natural cavities containing wood duck nests were located. Mean clutch size for nests in natural cavities was 13.7 eggs. Hatching success was 92.7 percent. The peak hatching period occurred during the third and fourth weeks of May. Brood size decreased from 9.6 ducklings at hatching to 4.3 ducklings at flight stage. No predation of nesting wood ducks or eggs was noted. Competition for nest boxes was severe. Wildlife species occupied 91.4 percent of available nest boxes in 1972 and 73.6 percent in 1973. The starling (Sturnus vulgaris) was the most serious nest competitor. Wood duck usage of nest boxes was low but increased from two nests (7.2 percent) in 1972 to eight nests (20.5 percent) in 1973. This increase was due to improved maintenance and relocation of nest boxes.

Download or read book Ring necked Duck Productivity in Relation to Wetland Acidity written by Daniel G. McAuley and published by . This book was released on 1986 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nesting productivity, duckling food habits and brood and duckling survival of ring-necked ducks (Aythya collaris) were examined in relation to wetland water chemistry in east-central Maine during 1983-85. Clutch size and nest success were determined from 34 nests. In addition 51 broods were back-dated to obtain nest initiation dates. Duckling foods were obtained from 37 ducklings from 16 different wetlands. Brood and duckling daily survival rates were determined for 64 broods (381 ducklings) by weekly counts of each brood during the brood period. Initial nests averaged 8.8 eggs, while renests averaged 7.1 eggs. Hatching success was 90% for successful nests, but only 13 of 34 nests were successful. Predators destroyed 66.6%, 23.8% were flooded and 9.5% were abandoned. The peak of nest initiation was the same for all years (May 21-31).

Download or read book Waterfowl Population Status written by and published by . This book was released on with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wildlife Research Report written by and published by . This book was released on 1972 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wildlife Abstracts written by U.S. Fish and Wildlife Service and published by . This book was released on 1954 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Redhead Waterfowl Production Wetlands Preservation written by and published by . This book was released on 1981 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: