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The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
Browse more than 5,500 book chapters authored by our scientists over the past 100+ year history of the USGS and refine search by topic, location, year, and advanced search.
Filter Total Items: 6196
Alaska peregrine falcon productivity in 1984 and the role of organochlorine residues Alaska peregrine falcon productivity in 1984 and the role of organochlorine residues
Twenty Peregrine Falcon (Falco peregrinus) eggs (one per eyrie) were collected at random in Alaska in 1984 for organochlorine residue analysis. Prior to this study we had obtained only addled eggs which were possibly not representative of the egg-laying population if addled eggs contained different levels of organochlorines than viable eggs that hatched. Ten eggs were collected from the...
Authors
Robert E. Ambrose, Charles J. Henny, R. E. Hunter
An overview of raptor biology and conservation in Latin America An overview of raptor biology and conservation in Latin America
Prior to the last decade, biological studies of raptorial birds in Latin America were, with a few exceptions, nonexistent. For many species all that was known was the general range and habitat type. While the logistical and political challenges are still present, the last few years has seen the opening of a door to what will almost surely be a flood of scientific investigations. From...
Authors
D. H. Ellis
Analysis of survival data from telemetry projects Analysis of survival data from telemetry projects
Telemetry techniques can be used to study the survival rates of animal populations and are particularly suitable for species or settings for which band recovery models are not. Statistical methods for estimating survival rates and parameters of survival distributions from observations of radio-tagged animals will be described. These methods have been applied to medical and engineering...
Authors
C.M. Bunck, Scott R. Winterstein, K. H. Pollock
Applications and considerations for wildlife telemetry Applications and considerations for wildlife telemetry
No abstract available.
Authors
M.R. Fuller
Bird conservation in the United States Caribbean Bird conservation in the United States Caribbean
No abstract available.
Authors
J. W. Wiley
California condor (Gymnogyps californianus) breeding biology California condor (Gymnogyps californianus) breeding biology
No abstract available.
Authors
N.F.R. Snyder
Captive breeding and management of black-footed ferrets Captive breeding and management of black-footed ferrets
No abstract available.
Authors
J. W. Carpenter
Case histories of organophosphate pesticides killing birds of prey in the United States Case histories of organophosphate pesticides killing birds of prey in the United States
Since 1982 when secondary. poisoning of Red-tailed Hawks (Buteo jamaicensis) was documented following the recommended use of famphur on cattle, the Patuxent Wildlife Research Center has tested for organophosphate (OP) poisoning in selected birds of prey found dead. This report documents the circumstances for a number of. cases where birds of prey were killed by OP pesticides in the...
Authors
Charles J. Henny, E. J. Kolbe, E. F. Hill, L. J. Blus
Characteristics of the migration of peregrine falcons at Assateague Island, 1970-1984 Characteristics of the migration of peregrine falcons at Assateague Island, 1970-1984
No abstract available.
Authors
F.P. Ward, W.S. Seegar, M. Yates, K. Titus, M.R. Fuller
Conservation of island ecosystems Conservation of island ecosystems
No abstract available.
Authors
C. B. Kepler, J. M. Scott
Cooper's hawk nesting habitat use and selection in eastern N. America Cooper's hawk nesting habitat use and selection in eastern N. America
No abstract available.
Authors
J. A. Mosher, K. Titus, Robert N. Rosenfield, M.R. Fuller