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Articles 1051 - 1075 of 1075
Full-Text Articles in Ornithology
Emus On The Move : 1976, Michael T. Sexton
Emus On The Move : 1976, Michael T. Sexton
Journal of the Department of Agriculture, Western Australia, Series 4
The greatest migration of emus in recent times came out of the ZMurchison and Gascoyne pastoral areas during the winter of 1976. The emus were driven south-westerly by an instinctive search for food.
The Agriculture Protection Board's barrier fences stoped the wave of emus on the fringes of the wheatbelt, causing a congregation estimated in mid June to total 50,000 birds.
This article reviews the reason behind the emu migration and the policies employed to deal with such a situation.
Homing Studies Of Bank Swallows In Eastern Illinois, Jennifer Eileen Hagerstrom
Homing Studies Of Bank Swallows In Eastern Illinois, Jennifer Eileen Hagerstrom
Masters Theses
A series of homing experiments using 39 color-marked Bank Swallows (Riparia riparia) were carried out in eastern Illinois during the summer of 1975. The swallow colony was located four km east-northeast of Charleston, Illinois at the Charleston Stone Quarry. Eight release sites were located in the four compass directions from the home colony at distances of 14.4 to 32.3 km away.
The colony was approached before dawn and swallows were captured using tube traps. Birds were color-marked, banded, and taken in individual bags to the release site by automobile. Cloud cover, wind velocity, wind direction, and orientation behavior …
Breeding Bird Study On The Douglas-Hart Nature Preserve, An East-Central Illinois Modified Oldfield, Charles F. Zimmer
Breeding Bird Study On The Douglas-Hart Nature Preserve, An East-Central Illinois Modified Oldfield, Charles F. Zimmer
Masters Theses
No abstract provided.
The Bobwhite Quail, Norm Dey, Jack Sinn
The Bobwhite Quail, Norm Dey, Jack Sinn
Nebraska Game and Parks Commission: Publications
A Year with the Bobwhite
Population Dynamics—Managing the Variables
The Way to Quail Abundance
The Ring-Necked Pheasant In Nebraska, William L. Baxter, Carl W. Wolfe
The Ring-Necked Pheasant In Nebraska, William L. Baxter, Carl W. Wolfe
Nebraska Game and Parks Commission: Publications
Ringneck—Its Past and Prospects: A most successful exotic, pheasant numbers are declining
Nuptial Rites and Nesting: Spring recoups winter’s losses
Summer Broods: While cocks undergo their annual moult, hens enter the brooding period; for eight weeks, hens attend chicks
Hunting the Ring-necked Pheasant
Season of Testing: Nebraska’s winters test a pheasant’s mettle, but given good cover and an adequate food supply, the ringneck is almost impervious to the elements
Methods of Management
Life History And Ecology Of The Ring-Necked Pheasant In Nebraska, William L. Baxter, Carl W. Wolfe
Life History And Ecology Of The Ring-Necked Pheasant In Nebraska, William L. Baxter, Carl W. Wolfe
Nebraska Game and Parks Commission: Publications
Table of Contents
The Study … 6
Population Studies … 8 ...
Methods … 8 ...
Results and Discussion … 9
Nesting Studies … 13 ...
Methods … 13 ...
Results and Discussion … 14 ...
Nest Parasitism … 16 ...
Effects of Nest Searching on Nest Fate ... 17 ...
Nesting Chronology ... 18 ...
Roadside Nests ... 21 ...
Nesting in Experimental Alfalfa ... 22 ...
Pheasant Production in Wetlands ... 23
Brood Studies … 26 ...
Methods ... 26 ...
Sampling Problems ... 26 ...
Results and Discussion ... 27
Cover Utilization by Pheasant Broods ... 29 …
Factors Affecting The Population Of Raptorial Birds On Sauvie Island, Oregon, Jeffry Gottfried
Factors Affecting The Population Of Raptorial Birds On Sauvie Island, Oregon, Jeffry Gottfried
Dissertations and Theses
This study is an analysis of the various factors affecting the population of raptorial birds on Sauvie Island, Oregon. A census of diurnal and nocturnal raptors was carried out along with an analysis of food habits. Once the major prey species were determined they were censused, and the effects of the land management practices on their numbers was investigated. In addition, 100 randomly selected nest boxes were sampled so as to determine the extent to which raptors were making use of them. Red-tailed hawk and Great Horned Owl nests were located.
It was found that four diurnal raptors and three …
Failure To Establish Feral Coturnix Quail Populations In Arkansas In The Late 1950'S, Douglas A. James
Failure To Establish Feral Coturnix Quail Populations In Arkansas In The Late 1950'S, Douglas A. James
Journal of the Arkansas Academy of Science
Although Coturnix introductions failed in the late 1950's, it was learned in Arkansas that birds survived longest after autumn releases especially where fallow fields were numerous, that Coturnix favored grasslands whereas the bobwhite preferred shrublands, and that Coturnix occurred singly, pairing only in the breeding season.
A Comparison Of Nocturnal Restlessness Of Caged Thrushes And Migration Of Free Thrushes, Charles Goodwin Kjos
A Comparison Of Nocturnal Restlessness Of Caged Thrushes And Migration Of Free Thrushes, Charles Goodwin Kjos
Masters Theses
Nocturnal activity (Zugunruhe) of eight caged, radio-tagged thrushes (Hylocichla spp.) was compared by signal analysis with the occurrence of migration in 16 free, radio-tagged thrushes over a 37-night period during the autumn of 1970 in central Illinois. The study was conducted to determine the extent of synchrony of Zugunruhe and migration in these nocturnal migrants in fall. Zugunruhe frequently occurred on nights when there was no migration, but migration occurred only on nights when at least 50 per cent of the caged birds were active. Except for one departure which was atypical in several respects, migration occurred …
The Breeding Biology Of The Western Tanager (Piranga Ludoviciana), Gary G. Benson
The Breeding Biology Of The Western Tanager (Piranga Ludoviciana), Gary G. Benson
All Master's Theses
In 1969 a two-year study was undertaken in an effort to enlarge our knowledge of the life history of the western tanager (Piranga ludoviciana). Bent (1958) summarizes the literature on the western tanager, and a review of his work clearly shows an almost total absence of detailed information on the species' life history. To obtain this information, observations were conducted from 1 May through 29 July 1969. A few observations were made during the 1968 breeding season.
The Indian Mynah, John L. Long
The Indian Mynah, John L. Long
Journal of the Department of Agriculture, Western Australia, Series 4
THE Common or Indian Mynah (Acridotheres tristis) inhabits Afghanistan, Baluchistan, southern Russian Turkestan, India, Ceylon and the Andaman Islands.
The Red-Whiskered Bulbul, John L. Long
The Red-Whiskered Bulbul, John L. Long
Journal of the Department of Agriculture, Western Australia, Series 4
Widely distributed in both Africa and Asia, Bulbuls are a largely tropical group of fruit eating birds ranging in size from that of a house sparrow to a blackbird.
The Role Of Adventitious Reinforcement In Operant Discrimination, Alan Kamil, John W. Davenport
The Role Of Adventitious Reinforcement In Operant Discrimination, Alan Kamil, John W. Davenport
Avian Cognition Papers
Rats were trained in 2 SD-SΔ discrimination experiments in which the effects of an SD-postponement contingency during SΔ and temporal regularity of SΔ duration were assessed. Experiment I showed that discrimination is markedly facilitated by the presence of an SD-postponement contingency of either fixed or variable duration. Experiment II showed that variable-duration SΔ periods in a noncontingent schedule can also greatly enhance formation of an operant discrimination. These effects were attributed to differences in the probability of adventitious reinforcement of SΔ behavior by SD events.
Studies On The Avifauna Of Burgner Acres, An Upland Stream-Side, Ash-Elm Forest And Its Edge, Kerry Lee Bryan
Studies On The Avifauna Of Burgner Acres, An Upland Stream-Side, Ash-Elm Forest And Its Edge, Kerry Lee Bryan
Masters Theses
No abstract provided.
The Indian Crow, John L. Long
The Indian Crow, John L. Long
Journal of the Department of Agriculture, Western Australia, Series 4
THE Indian crow occasionally reaches the shores of Australia from southern Asia via ships travelling between Indian and Australian ports.
Subspecies And Ecology Of Meadowlarks In Northwest Arkansas, Robert Lowery, Earl L. Hanebrink
Subspecies And Ecology Of Meadowlarks In Northwest Arkansas, Robert Lowery, Earl L. Hanebrink
Journal of the Arkansas Academy of Science
No abstract provided.
The Breeding Population Of Waterfowl On The Chippewa National Forest, John Mathiesen
The Breeding Population Of Waterfowl On The Chippewa National Forest, John Mathiesen
United States Department of Agriculture, Forest Service / University of Nebraska-Lincoln: Faculty Publications
The purpose of this paper is to describe the characteristics of the breeding waterfowl population on the Chippewa National Forest in north central Minnesota.
The Sparrow, John L. Long
The Sparrow, John L. Long
Journal of the Department of Agriculture, Western Australia, Series 4
SCATTERED widely throughout the world, sparrows are a nuisance wherever they have become established.
Two species have been introduced to Australia—the House sparrow (Passer domesticus) and the Tree sparrow (Passer montanus.)
Seasonal Occurrences Of Arkansas Birds, Douglas A. James, Frances C. James
Seasonal Occurrences Of Arkansas Birds, Douglas A. James, Frances C. James
Journal of the Arkansas Academy of Science
No abstract provided.
The Sparrow Invasion Of 1962, C D. Gooding, C. R. Walton
The Sparrow Invasion Of 1962, C D. Gooding, C. R. Walton
Journal of the Department of Agriculture, Western Australia, Series 4
During late 1962 and early 1963, a report that sparrows were at large in the metropolitan area close to Perth drew intense public interest.
This article gives some facts about the reported sightings.
Bird Problems And Control In Western Australia, John L. Long
Bird Problems And Control In Western Australia, John L. Long
Journal of the Department of Agriculture, Western Australia, Series 4
ALTHOUGH wild birds are mostly beneficial in Western Australia, there are certain species which are damaging to agriculture and the home gardener.
Control Of The Emu, C D. Gooding, J. L. Long
Control Of The Emu, C D. Gooding, J. L. Long
Journal of the Department of Agriculture, Western Australia, Series 4
Vermin research officers C. D. GOODING and J. L LONG give the latest recommendations for control of the emu, based on a series of observations and poisoning experiments in the northern wheatbelt.
Some Recent Findings Concerning The Avifauna Of Arkansas, Douglas A. James
Some Recent Findings Concerning The Avifauna Of Arkansas, Douglas A. James
Journal of the Arkansas Academy of Science
No abstract provided.
Life Histories Of North American Nuthatches, Wrens, Thrashers And Their Allies: Order Passeriformes, Arthur Cleveland Bent
Life Histories Of North American Nuthatches, Wrens, Thrashers And Their Allies: Order Passeriformes, Arthur Cleveland Bent
Papers in Ornithology
An attempt has been made to give as full a life history as possible of the best-known subspecies of each species and to avoid duplication by writing briefly of the others and giving only the characters of the subspecies, its range, and any -habits peculiar to it. In many cases certain habits, probably common to the species as a whole, have been recorded for only one subspecies. Such habits are mentioned under the subspecies on which the observations were made. The distribution gives the range of the species as a whole, with only rough outlines of the ranges of the …
How To Study The Western Birds, Grace Mccormac French
How To Study The Western Birds, Grace Mccormac French
Jane Claire Dirks-Edmunds Documents
Originally a radio broadcast, this document explores the fraternal nature of bird watching. It was included in the papers of Dr. James A. Macnab, Dr. Jane Claire Dirks-Edmunds's mentor at Linfield College. The article mentions various books by bird-watching authorities and naturalists from around the Pacific Northwest.
Dirks-Edmunds, a 1937 graduate of Linfield, graduated from the University of Illinois in 1941; she returned to teach in the Biology department at Linfield from 1941-1974.