Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16785
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 American (
Authors
Robert E. Ambrose, C. J. Henny, R. E. Hunter
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
Organochlorine pesticides in plasma of migrating peregrine falcons at Padre Island, Texas, Spring 1978-80 vs. Spring 1984
A spring concentration of migrating Peregrine Falcons (Falco peregrinus) was first discovered at Padre Island, Texas, in April 1978. The birds were first captured and blood-sampled for monitoring residue burdens and trends in the late 1970' s. Only 29 Peregrines were sampled in 1978 and 1979, but 111 were sampled in 1980. The initial investigation showed that DDE in the plasma of spring migrants r
Authors
C. J. Henny, K.E. Riddle, C.S. Hulse
The status of osprey research in western North America
The status of research on the Osprey tn western North America is reviewed. For discussion purposes the geographical populations are conveniently subdivided into Canada and Alaska, the Pacific Northwest of the United States, the western interior of the United States, and Mexico. Suggestions are made for further research on the populations in each region. In addition, possible research and managemen
Authors
C. J. Henny
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 United States.
Authors
C. J. Henny, E. J. Kolbe, E. F. Hill, L. J. Blus
Habitat loss and its role in the decline of the Puerto Rican parrot (Amazona vittata)
No abstract available.
Authors
J. W. Wiley
Status and conservation of forest raptors in the West Indies
No abstract available.
Authors
J. W. Wiley
Captive breeding and management of black-footed ferrets
No abstract available.
Authors
J. W. Carpenter
Maximum likelihood methods for investigating reporting rates of rings on hunter-shot birds
It is well known that hunters do not report 100% of the rings that they find on shot birds. Reward studies can be used to estimate what this reporting rate is, by comparison of recoveries of rings offering a monetary reward, to ordinary rings. A reward study of American Black Ducks (Anas rubripes) is used to illustrate the design, and to motivate the development of statistical models for estimatio
Authors
M.J. Conroy
The shiny cowbird: A brood parasite expanding its range in the Caribbean region
No abstract available.
Authors
A. Cruz, T. Manolis, J. W. Wiley