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Articles 35731 - 35760 of 38013
Full-Text Articles in Entire DC Network
Bird Control Under A State Fish And Game Permit System, James Shepard
Bird Control Under A State Fish And Game Permit System, James Shepard
Bird Control Seminars Proceedings
I guess the impetus for laws in our state, really was the action of the city of Boston in 1963, when the Parks and Recreation Department felt that it was time to do something about massive populations of pigeons on the Boston Commons and in the city. The Parks Department came to our agency to find out what could be done. We immediately found as a result of a reorganization and recodification of the laws some 20 years before, that it was illegal to use or apply poisons for the purpose of killing any birds or mammals in the Commonwealth …
Cooperation Between Pest Control Operators And Regulatory Authorities, Robert M. Russell
Cooperation Between Pest Control Operators And Regulatory Authorities, Robert M. Russell
Bird Control Seminars Proceedings
When Dr. Jackson called me to speak on the rights of the individual I told him he probably had the wrong person because I am an individual and I believe my company is an organization very prone to say "what is, is and you've got to go on with it." If I'd have heard some of the talks here today before he called me, I wouldn't be here at all, because I'm not sure what individual rights there are left! So let me change this thing around a little bit and state that instead of speaking of the rights of …
Drc-1339 In Feedlots, John W. Degrazio
Drc-1339 In Feedlots, John W. Degrazio
Bird Control Seminars Proceedings
Since 1960, the Denver Wildlife Research Center has been investigating methods of controlling starlings (Sturnus vulgaris) at livestock feedlots. One chemical developed at the Denver Center is a slow-acting avicide, DRC-1339 (3-chloro-p-toluidine); it is well accepted and highly toxic to starlings, generally less toxic to other birds, and relatively nontoxic to mammals. It possesses no secondary hazard to avian and mammalian predators. A Cooper's hawk (Accipiter cooperii), a marsh hawk (Circus cyaneus), and a sparrow hawk (Falco sparverius) subsisted on field-killed DRC-1339 starlings for 3- and 4-month periods with no ill effects. In our tests, poultry pellets (Purina Layena Checkers') …
Costs Of New Materials: The Manufacturer's Dilemma, Dan Macdougall
Costs Of New Materials: The Manufacturer's Dilemma, Dan Macdougall
Bird Control Seminars Proceedings
I thought it was possible that some of you might not be acquainted with some of the frustrations which are involved in jousting with the bureaucracy in Washington. So I thought I would review that situation very briefly for you, particularly in regard to the compound Queletox. We will confess that we had some real qualms about accepting this material for control as a bird toxicant initially. And the reasons we were concerned about this were because the compound was being used in other areas as an agricultural chemical. It was registered for mosquito control, and it was being used …
New Materials For Bird Control, John W. Degrazio, Philip J. Spear
New Materials For Bird Control, John W. Degrazio, Philip J. Spear
Bird Control Seminars Proceedings
A variety of methods is necessary to solve the many bird damage problems that occur in agriculture and other fields of interest. It is apparent that no one method can be used to provide answers for all damage situations; each problem and problem area is unique and requires thorough knowledge and investigation before intelligent measures of bird control can be applied. Thus, basic research in the laboratory and initial field studies are necessary to arrive at the most safe, efficient, and economical method of bird damage control possible for each situa-tion. The use of chemicals for damage control is one …
Bait And Bait Materials, Fred R. Courtsal
Bait And Bait Materials, Fred R. Courtsal
Bird Control Seminars Proceedings
I'm going to speak about bird baits that are produced by the rodent-control fund. In my estimation, there are about six criteria for mixing good, high quality bait materials. The first one would be a toxicant. This is the first thing people talk or think about. I would assume that you would select a toxicant that has the quality to do the intended job. The second point is the sticker. So our criteria for a sticker are as follows: good adhering qualities, good spreading qualities (by this I mean if you introduce the toxicant into a sticker as is often …
Roost Treatments Using 3-Chloro P-Toluidine Hydrochloride, Robert Schwab
Roost Treatments Using 3-Chloro P-Toluidine Hydrochloride, Robert Schwab
Bird Control Seminars Proceedings
Pest birds cause serious damage to agricultural crops in most situations only when the number of individuals is very high. Often, large populations of avian pest species spend the hours of darkness congregated in roosts where they become vulnerable to certain control methods. Such is the case in California where certain pest species, particularity starlings and blackbirds, can often be found roosting in cattail-tule marshes. From these relatively concentrated populations the birds disperse to cause in some, but not all, cases of serious damage to certain agricultural crops. The obvious disadvantage resulting from the tendency of these birds to concentrate …
Utility Of Pyrotechnics In Bird Control, John R. Beck
Utility Of Pyrotechnics In Bird Control, John R. Beck
Bird Control Seminars Proceedings
The balanced approach is essential for the proposed application of control methods for birds. The essential ingredients in a balanced approach are knowledge of the environment, both animal, plant and human; reasonable experience in the solution of biological problems; and an awareness of the possible solutions available. After these problems' qualifying ingredients have been met, the control specialist or investigator may apply the tool of choice. In most instances he will have selected alternatives available to himself. In the selection of the tool of choice and alternative methods, the cost of time, labor, materials and equipment, the need or purpose …
Chemosterilants And Bird Control, M. R. Woulfe
Chemosterilants And Bird Control, M. R. Woulfe
Bird Control Seminars Proceedings
The total scope of chemosterilants is very wide so I will comment only on the pigeon chemosterilant developed by G.D. Searle & Co. and then briefly on the role of chemosterilants, generally, in bird control. Searle's ORNITROL (SC-12937, azacosterol) is a chemosterilant which in-hibits reproduction in the pigeon and is to be used as a means of controlling pigeon populations. It is fed as a treated whole corn bait (0.1%) for a period of ten days and inhibits reproduction for about six months. We recommend treat-ment in the early spring just before the onset of the peak reproduction season to …
Birds, Encephalitis, And Ectoparasites, Margaret A. Parsons
Birds, Encephalitis, And Ectoparasites, Margaret A. Parsons
Bird Control Seminars Proceedings
Encephalitis or "inflammation of the brain" is a general term applied to a disorder which may have many causes. Usually this disorder is caused by a virus but it may also be produced by other types of micro-organisms. Encephalitis may also occur after an initial infection with mumps, measles and other childhood diseases, or following a vaccination, or as a result of a non-infectious process such as poisoning. Since encephalitis affects the brain, which in turn controls all body functions, encephalitis from any cause can show symptoms of general illness throughout the body such as headache, nausea and vomiting, fever, …
Status Of Bio-Sonics In Pest Bird Control, Gordon W. Boudreau
Status Of Bio-Sonics In Pest Bird Control, Gordon W. Boudreau
Bird Control Seminars Proceedings
Bioacoustics is defined as the study of biologically significant sounds ori-ginated by animals, and the mechanisms which produce and receive these sounds. Many of these sounds are audible to the human ear but some are above the human hearing range and fall into the ultrasonics class. There are sounds used by animals which are near or below the normal human hearing range in pitch, as in certain fish. Bioacoustics comprises a broad field of investigation and is an area which has only recently been explored. Improvements in electronic audio equipment have provided the impetus which launched recent bioacoustical investigations and …
Daily And Seasonal Susceptibility Cycles Of The Starling, Robert G. Schwab
Daily And Seasonal Susceptibility Cycles Of The Starling, Robert G. Schwab
Bird Control Seminars Proceedings
I would like to review a few of the characteristics of 3-chloro-p-toluidine hydrochloride (DRC-1339) prior to discussion on the daily and seasonal suscep-tibility of starlings to this avicide. DRC-1339 was screened and developed by the Denver Research Center (U.S.D.I.) and since has been tested in various portions of the country by the Denver Center and other organizations, including the State of California. In California we are much impressed with this compound for a variety of reasons, particularly the specificity of it to birds, ease in handling, ease in formulation, and many other characteristics which make this a highly desirable avicide. …
The Role Of Fda In Environmental Contamination And Surveillance , Clifford Shane
The Role Of Fda In Environmental Contamination And Surveillance , Clifford Shane
Bird Control Seminars Proceedings
The Food & Drug Administration is concerned about birds in two areas. One is the direct contamination of foods, drugs and cosmetics by birds and the other is the possible contamination of these products by the chemicals used to control birds. Since its conception, the Food & Drug Administration has been concerned about the contamination of foodstuffs by birds. Like all animals, they have both their good and bad points. The one bad point is that they are carriers of certain diseases. In addition, the consumer of today is not ready to accept products which have been contaminated by fecal …
Sodium Fluoride In Feedlot Starling Control, James Steckel
Sodium Fluoride In Feedlot Starling Control, James Steckel
Bird Control Seminars Proceedings
I'm going to talk about the toxicant, sodium fluoride. This, of course, is not new to anybody who's been in the pest control business. It's very common and is a material that is readily available to industry wherever you might be— sodium fluoride, NaF. Sodium fluoride was a material used in veterinary practice in its early days as a worming agent. When the first problems developed with the swine feeders, particularly with TGE (transmissible gastroenteritis), they were needing a toxicant that they could use to control the birds that were stealing feed out of the food bunkers and leaving their …
Orchard Bird Control With Decoy Traps, Bill Shake
Orchard Bird Control With Decoy Traps, Bill Shake
Bird Control Seminars Proceedings
crops. With one method, we tried to see if we could reduce redwinged blackbird damage to corn. We put up the larger traps-25 x 50 or 50 x 100 feet-near corn fields that were being heavily hit or next to marshes where birds are roosting. Although we captured thousands of birds and destroyed them, we were working with such large numbers of birds that we found it was actually like pouring sand effect at all in reducing damage to corn. Also it's not an efficient method in this type of a situation; it takes a lot of time to tend …
Pest Birds And Modern Architecture, Michael W. Fall, David E. Schneider
Pest Birds And Modern Architecture, Michael W. Fall, David E. Schneider
Bird Control Seminars Proceedings
We are offering some remarks on what the entomologist would call the areas of cultural control. Our interest in this approach developed out of a series of information discussions we've had concerning regional planning pro-grams at Penn State. Our ideas on the applications of this to bird management are not well developed; we'd be happy to hear your suggestions and comments. The ideas of cultural control are not new and are only one of many approaches. But perhaps we are reaching a stage of public concern about bird problems and about environmental contamination which make the climate for long range …
Registered Participants: Fourth Bird Control Seminar, 1968
Registered Participants: Fourth Bird Control Seminar, 1968
Bird Control Seminars Proceedings
Names & addresses of 82 participants.
Keep your city clean: Eat a Pigeon
Presession Seminar On Blackbird Problems, Tom Stockdale
Presession Seminar On Blackbird Problems, Tom Stockdale
Bird Control Seminars Proceedings
I'd like to open with a very brief discussion, then call on some selected people with whom I've corresponded earlier, and ask if they will discuss a particular aspect of this total bird problem. I've asked that they keep their comments from three to five minutes. Trying to break the total problem down into its several facets we came up with six arbitrary subtopics. For want of better terms I've called these: population census techniques, chemical repellants, sonic repellants, wetting agents, lethal control techni-ques, and damage evaluation. Your particular problem in your area may be slightly different than in other …
A Review Of Parental Carrying Of Young By Waterfowl, Paul A. Johnsgard, Janet Kear
A Review Of Parental Carrying Of Young By Waterfowl, Paul A. Johnsgard, Janet Kear
Papers in Ornithology
A review of literature reveals that published accounts of parental carrying among waterfowl are numerous and of diverse origins. Parental carrying on the back while swimming has been reliably seen in three species of swans, two sheldgeese, and at least seven species of ducks. Parental carrying of young in flight has also been reported for at least 16 species representing seven of the generally recognized waterfowl tribes. The majority of such accounts have involved carrying the young in the bill, a possibility that is somewhat substantiated by reliable observations of egg or eggshell carrying by females of several species. In …
Agricultural Experiment Station News September 1968
Agricultural Experiment Station News September 1968
Agricultural Research Division: News and Annual Reports
CONTENTS:
FROM THE DIRECTORS OFFICE
INTERDISCIPLINARY RESEARCH PROGRAMS
PERSONNEL ACTIONS
NEW GRANTS, CONTRACTS AND COOPERATIVE AGREEMENTS
GENERAL NOTES
AGRICULTURAL EXPERIMENT STATION PUBLICATIONS – September 1968
The Prairie Naturalist Volume 1, No. 3. September, 1969
The Prairie Naturalist Volume 1, No. 3. September, 1969
The Prairie Naturalist
EDITORIAL: A VOICE FOR CONSERVATION ▪ Paul B. Kannowski
CHRISTMAS BIRD COUNTS FOR NORTH DAKOTA—1968 ▪ Robert N. Randall
SOME ENVIRONMENTAL MANAGEMENT PROBLEMS AND PROPOSED SOLUTIONS ▪ Laurence R. Jahn
SOME PLANTS OF WESTERN MINNESOTA ▪ O. A. Stevens
MORTALITY OF MIGRATORY BIRDS AT GRAND FORKS, NORTH DAKOTA FOLLOWING A MOSQUITO CONTROL OPERATION IN MAY, 1969 ▪ Robert W. Seabloom, Lewis W. Oring and James R. Reilly
NESTING OF THE UPLAND PLOVER ON THE MISSOURI COTEAU ▪ K. F. Higgins, H. F. Duebbert and R. B. Oetting
NOTE
Albino sparrows discovered at Hazen, North Dakota ▪ Larry L. Kruckenberg and …
Agricultural Experiment Station News August 1968
Agricultural Experiment Station News August 1968
Agricultural Research Division: News and Annual Reports
CONTENTS:
FROM THE DIRECTOR'S DESK
REGIONAL RESEARCH
PERSONNEL ACTIONS
NEW GRANTS, CONTRACTS AND COOPERATIVE AGREEMENTS
GENERAL NOTES
AGRICULTURAL EXPERIMENT STATION PUBLICATIONS - AUGUST 1968
Measuring Milk Flow Of Dairy Cows, G. H. Schmidt, L. Dale Van Vleck
Measuring Milk Flow Of Dairy Cows, G. H. Schmidt, L. Dale Van Vleck
Department of Animal Science: Faculty Publications
Milk flow measurements on 124 cows were analyzed to determine how they are affected by vacuum level, pulsation rate, pulsation ratio of the milking machine, and the breed, age, stage of lactation, and milk yield of the cow. Average rate of flow prior to machine stripping, yield during the first minute, and yield during the first 2 rain of milking were highly correlated with maximum rate of milk flow. These measurements were significantly increased by days in milk, vacuum level, pulsation rate, pulsation ratio, and total yield. Age at calving had a slight effect on yield during the first minute …
Relative Selection Efficiency In Retrospect Of Selected Young Sires, L. Dale Van Vleck
Relative Selection Efficiency In Retrospect Of Selected Young Sires, L. Dale Van Vleck
Department of Animal Science: Faculty Publications
The indexes used in retrospect in estimating one-half genetic value (daughter superiority) of progeny of 541 Holstein matings contracted by Eastern Artificial Insemination Cooperative were determined. A set of information on relatives to be complete would include records of paternal sisters, the dam, paternal sisters of the dam, maternal sisters, maternal grandam, and maternal sisters of the dam. The average index of daughter superiority for the 541 progeny was between 406 and 455 kg of milk, depending on which combination of relatives was used. Paternal sisters accounted for 45 to 50% of the total daughter superiority. Records of maternal relatives, …
Agricultural Experiment Station News July 1968
Agricultural Experiment Station News July 1968
Agricultural Research Division: News and Annual Reports
CONTENTS:
FROM THE DIRECTOR'S DESK
FACILITIES• PROGRESS
PERSONNEL ACTIONS
NEW GRANTS, CONTRACTS, AND COOPERATIVE AGREEMENTS
AGRICULTURAL EXPERIMENT STATION PUBLICATIONS - JULY 1968
Whole Issue Nebraska Bird Review (July 1968) 36(3)
Whole Issue Nebraska Bird Review (July 1968) 36(3)
Nebraska Bird Review
TABLE OF CONTENTS
Avian Antagonistic Response to Potential Red-headed Woodpecker Predation .......................50
The Sixty-seventh Annual Meeting....................... 52
Additions to Lincoln County Checklist .......................54
Book Reviews....................... 57
1967 (Tenth) Fall Occurrence Report .......................58
Notes .......................67
Correction to 1967 Nebraska Nesting Survey .......................68
The "New" Cover .......................68
The Genera And Species Of The Feather Mite Subfamily Trouessartinae Except Trouessartia (Acarina: Proctophyllodidae), Kenneth R. Orwig
The Genera And Species Of The Feather Mite Subfamily Trouessartinae Except Trouessartia (Acarina: Proctophyllodidae), Kenneth R. Orwig
Bulletin of the University of Nebraska State Museum (1924–2023)
A systematic study of the acarine subfamily Trouessartinae (except Trouessartia) of the family Proctophyllodidae is presented. Diagnoses are given for the subfamily, five named genera and four new genera. The named genera and their type species are: Allanalges Trouessart, 1886, A. podagricus (Trouessart), 1886; Calcealges Gaud, 1952, C. cyathoplax Gaud, 1952; Hemicalcealges Gaud and Mouchet, 1957, H. margaropygus (Gaud and Mouchet), 1957; Pseudalges Radford, 1950, Proctophyllodes (Pterocolus) analgoides Trouessart, 1885; and Trouessartia Canestrini, 1899, Dermaleichus corvinus Koch, 1840. New genera and their type species are: Arthrogynalges, A. biovoidatus, new species; Bicentralges, B. orientalis, new species; Neocalcealges, N. inattditus, new species; …
The Fable And The Fabulous: The Use Of Traditional Forms In Children's Literature, Ned Samuel Hedges
The Fable And The Fabulous: The Use Of Traditional Forms In Children's Literature, Ned Samuel Hedges
Department of English: Dissertations, Theses, and Student Research
Because children’s literature is considered to be a development of the past two centuries, it is generally believed that there are differences between children's literature and adult literature. The majority of people who have written extensively about children's literature have been primarily concerned with those differences. I too believe that there are differences between children's literature and adult literature; but those differences seem to me to be neither as extensive nor as significant as has been commonly assumed. What are the differences? Can they be described? Are there also significant similarities between children's literature and adult literature?
I believe that …
The Fable And The Fabulous: The Use Of Traditional Forms In Children's Literature, Ned Samuel Hedges
The Fable And The Fabulous: The Use Of Traditional Forms In Children's Literature, Ned Samuel Hedges
Department of English: Dissertations, Theses, and Student Research
I believe that there are features common to both children is and adult literature, and that those similarities are much more important to a proper understanding of children's literature than are the differences that exist. This study. will carry the burden of proof for that belief. If goad children's literature is susceptible to serious interpretive criticism, and I believe that it is, it is so primarily because of what it contains in common with general. literary tradition rather than because of what it contains different from general. literary tradition. The complexity of the children's books that I will analyze in …
Foraging Dives By Surface-Feeding Ducks, Janet Kear, Paul A. Johnsgard
Foraging Dives By Surface-Feeding Ducks, Janet Kear, Paul A. Johnsgard
Papers in Ornithology
Recently, R. I. Smith (1966. Wilson Bull., 78:483-484) questioned, among other things, the occurrence of foraging dives by Pintails (Anas acuta). The authors note observations and published accounts of diving behavior of wild Pintails as well as a number of other surface-feeding species.