Avian respiratory system disorders
Glenn H. Olsen
1989, Association of Avian Veterinarians Proceedings (1989) 433-435
Diagnosing and treating respiratory diseases in avian species requires a basic knowledge about the anatomy and physiology of this system in birds. Differences between mammalian and avian respiratory system function, diagnosis, and treatment are highlighted....
A historical review of peregrine falcon breeding and summering records for Arizona and the Navajo Indian Reservation
D. H. Ellis, G. Monson
1989, Southwestern Naturalist (34) 565-569
This is a historical review of peregrine falcon breeding and summering records for Arizona and the Navajo Indian Reservation...
Trapping Boiga irregularis on Guam using bird odors
T. H. Fritts, N.J. Scott Jr., B.E. Smith
1989, Journal of Herpetology (23) 189-192
No abstract available....
Interactions of wolves and dogs in Minnesota
S. H. Fritts, W.J. Paul
1989, Wildlife Society Bulletin (17) 121-123
This article reports on the nature and extent of wolf-dog interactions in Minnesota, based on investigations of complaints received by personnel of the federal government dealing with wolf-depredation control. Findings may indicate the wolf-dog interactions that can be expected in other recovery areas....
Peregrines revisited. [Book review] Peregrine Falcon Populations: Their Management and Recovery, T. J. Cade, et al., editors
M.R. Fuller
1989, Prairie Naturalist (21) 235-236
Well edited, well-produced book of invited papers from a 1985 conference. Subject categories include surveys and status, environmental contaminants, captive breeding and release, and population biology...
The decline of an adaptation in the absence of a presumed selection pressure
A. Cruz, James W. Wiley
1989, Evolution (43) 55-62
The colonial nesting Village Weaver (Ploceus cucullatus) lays eggs that vary in ground color and pattern, but individual females lay similar eggs each time. Tests on captive African stocks have shown that females reject eggs of other cohorts if such eggs are sufficiently different. The Village Weaver may have evolved...
Effects of strychnine on raptors: A commentary
Stanley N. Wiemeyer
1989, Journal of Raptor Research (23) 18-19
A commentary on Cheny, C.D., S.B. VanderWall, and R.J. Poehlmann. 1987. Effects of strychnine on the behavior of great horned owls and red-tailed hawks. Journal of Raptor Research 21(3):103-110....
Environmental contaminants in blood of western bald eagles
Stanley N. Wiemeyer, Richard W. Frenzel, Robert G. Anthony, B.R. McClelland, Richard L. Knight
1989, Journal of Raptor Research (23) 140-146
<span data-sheets-value="{"1":2,"2":"Blood samples collected in 1979-81 from wintering Bald Eagles (Haliaeetus leucocephalus) in Oregon and northern California, residents in Oregon, migrants in Montana and residents in Washington were analyzed for lead (Pb), mercury (Hg) and organochlorines. Lead was detected infrequently (5%) and at low concentrations (<0.25 ppm) in nestlings from...
Vantage point for Visitor -- Patuxent new dream
Matthew C. Perry
1989, Fish and Wildlife News 16
Kirtland's warblers on the nesting grounds during the post- breeding period
P.W. Sykes Jr., C. B. Kepler, David A. Jett, M. E. DeCapita
1989, The Wilson Bulletin (101) 545-558
Information indicates that a substantial number of breeding birds remain in Michigan through September, and a few individuals probably remain into early October. Migration apparently consists of two waves of migrants: an early departure (mid-August to early September); and late departure (late September). Based on our findings,...
Review of dynamic optimization methods in renewable natural resource management
B. Kenneth Williams
1989, Natural Resource Modeling (3) 137-216
In recent years, the applications of dynamic optimization procedures in natural resource management have proliferated. A systematic review of these applications is given in terms of a number of optimization methodologies and natural resource systems. Optimization methods are characterized by (1) the mathematical model used to describe a natural resource...
Wildlife conservation through scientific research: 50th anniversary of the Patuxent Wildlife Research Center
D.L. Trauger, N. C. Coon
1989, Fish and Wildlife News 1-16
Recruitment failure in American avocets and black-necked stilts nesting at Kesterson Reservoir, California, 1984-1985
M.L. Williams, R. L. Hothem, H. M. Ohlendorf
1989, Condor (91) 797-802
There was a high incidence of embryo mortality and deformities in black-necked stilts nesting at Kesterson Reservoir during both years of this study and in American avocets during 1985. The concentrations of selenium in eggs at Kesterson Reservoir were sufficiently elevated to have caused the reproductive problems observed. Selenium appears...
Late record of Kirtland's warbler on the breeding grounds
P.W. Sykes Jr., D.J. Munson
1989, Jack-Pine Warbler (67) 101
New late date for the Kirtland's Warbler was recorded on the breeding grounds on October 1....
Case histories of wild birds killed intentionally with famphur in Georgia and West Virginia
Donald H. White, L.E. Hayes, P.B. Bush
1989, Journal of Wildlife Diseases (25) 184-188
Five incidences of bird mortality in Georgia and West Virginia (USA) involving migratory waterfowl, cranes, raptors, corvids and songbirds were investigated during the first 6 mo of 1988. Gross and histopathologic examinations revealed no evidence of infectious or other diseases. However, severe depression of cholinesterase activity was evident in brains...
A technique to prevent capturing birds in unattended, furled mist nets
P.W. Sykes Jr.
1989, North American Bird Bander (14) 45-46
A technique was developed to prevent the inadvertent capturing of birds in unattended mist nets left in place for long periods of time. This was accomplished by placing furled nets on top of 9-inch wide strips of 30-pound roofing felt secured to the ground between net support poles....
The eighty-ninth Christmas Bird Count: OC MD. Ocean City, MD
C.S. Robbins
1989, American Birds (43) 777-778
The eighty-ninth Christmas Bird Count: SD MD Southern Dorchester County, MD
C.S. Robbins
1989, American Birds (43) 779-780
Organochlorine contaminants in eggs of common terns from the Canadian Great Lakes, 1981
C.S. Robbins
1989, Environmental Pollution (59) 141-160
To determine if contaminant levels in Common Terns had changed over the last decade, we collected and analyzed eggs from four nesting colonies on the three lower Great Lakes during 1981. DDE and PCBs were detected in every egg from the four colonies. Dieldrin, mirex and trans-nonachlor were detected in more...
A national migratory gamebird harvest survey: A continuing need
J. Tautin, S.M. Carney, J.B. Bortner
1989, Transactions of the North American Wildlife and Natural Resources Conference (54) 545-551
Contaminant residues in fish from Tensas River National Wildlife Refuge
Parley V. Winger
1989, Lake and Reservoir Management (5) 113-119
Tensas River National Wildlife Refuge, Madison Parish, Louisiana, consists of bottomland hardwood swamps interspersed with small lakes and bayous supporting a diverse assemblage of waterfowl, fish, and assorted species of game and nongame wildlife. Fish collected in the refuge in 1984–85 from areas receiving direct inflow from agricultural runoff contained...
Effects of Kelthane® on reproduction of captive eastern screech-owls
Stanley N. Wiemeyer, J. W. Spann, C.M. Bunck, A. J. Krynitsky
1989, Environmental Toxicology and Chemistry (8) 903-913
Eastern screech-owls (Otus asio) were fed diets containing 10 ppm Kelthane® with 3.4% DDT-related contaminants (old technical formulation), 10 ppm Kelthane with no detectable DDT contaminants (new technical formulation) or a control diet. Food consumption, adult weight and date of initiation of egg laying were similar for birds in control...
Field toxicity tests in three north Florida rivers
P. V. Winger
1989, Proceedings of the Annual Conference of the Southeastern Association of Fish and Wildlife Agencies (43) 216-222
A specimen record of the fork-tailed swift from the Marshall Islands
R. B. Clapp
1989, 'Elepaio (49) 1-2
No abstract available....
The eighty-ninth Christmas bird count. Georgia, Florida
P.W. Sykes Jr.
1989, American Birds (43) 580-582
