Charles J. Henny
I am a Scientist Emeritus at the USGS Forest and Rangeland Ecosystem Science Center.
My research focuses on field studies of raptors and fish-eating birds, particularly Ospreys. I am interested in the unique situations and characteristics that make particular species vulnerable to contaminant threats. In my spare time I enjoy collecting bird books.
Education and Certifications
Ph.D., Wildlife Ecology, Oregon State University, Corvallis, OR (1970)
M.S., Wildlife Ecology (1967)
B.S., Fisheries & Wildlife (1965)
Science and Products
If you are unable to access or download a product, email fresc_outreach@usgs.gov a request, including the full citation, or call (541) 750-1030.
If you are unable to access or download a product, email fresc_outreach@usgs.gov a request, including the full citation, or call (541) 750-1030.
Filter Total Items: 213
Recent sightings and a specimen record of the Trumpeter Swan in the Willamette Valley, Oregon Recent sightings and a specimen record of the Trumpeter Swan in the Willamette Valley, Oregon
No abstract available.
Authors
Lawrence J. Blus, Charles J. Henny, M.S. Eltzroth
Persistence of DDT and metabolites in wildlife from Washington State orchards Persistence of DDT and metabolites in wildlife from Washington State orchards
Residues of the DDT group, particularly p,p′-DDT (DDT) were detected in high or unusual amounts in some wildlife samples collected in fruit orchards near Wenatchee, Washington from 1979 to 1983. Samples of birds contained p,p′-DDE (DDE) and DDT in ratios (DDE:DDT) as low as 2.6:1 in eggs and 1.9:1 in brains. An unexpectedly high number (about 50%) of some samples, such as fat of adult...
Authors
L. J. Blus, Charles J. Henny, C. J. Stafford, R. A. Grove
Case histories of bald eagles and other raptors killed by organophosphorus insecticides topically applied to livestock Case histories of bald eagles and other raptors killed by organophosphorus insecticides topically applied to livestock
Since 1982 when secondary poisoning of a red-tailed hawk (Buteo jamaicensis) was documented following the recommended use of famphur applied topically to cattle, the Patuxent Wildlife Research Center has tested dead birds of prey for poisoning by famphur and other pouron organophosphorus (OP) insecticides. Brain cholinesterase (ChE) activity was first determined, then if ChE was...
Authors
Charles J. Henny, E. J. Kolbe, E. F. Hill, L. J. Blus
Field methods to evaluate effects of pesticides on wildlife of the northwestern United States Field methods to evaluate effects of pesticides on wildlife of the northwestern United States
Field .methods used to evaluate the impact of organochlorine and organophosphate pesticides on wildlife populations in the Pacific Northwest are reviewed. Five field studies, presented in a CASE HISTORY format, illustrate study designs .and thetypes of information collected. The pesticides investigated included DDT, heptachlor, endr1n, and famphur, and the species studied included the...
Authors
Charles J. Henny
Concentrations of metals in mink and other mammals from Washington and Idaho Concentrations of metals in mink and other mammals from Washington and Idaho
From 1981 to 1983, concentrations dfof metals were determined in mink Mustela vison, muskrats Ondatra zibethica, and small mammals at one contaminated site in Idaho and at two less contaminated sites in Idaho and Washington. The highest concentrations of Pb and Cd occurred in samples from the Coeur d'Alene River system near or downstream from an extensive mining—smelting complex in...
Authors
L. J. Blus, Charles J. Henny, B.M. Mulhern
Radiotelemetry locates wintering grounds of DDE-contaminated black-crowned night-herons Radiotelemetry locates wintering grounds of DDE-contaminated black-crowned night-herons
This study was designed to determine if night-herons nesting at Ruby Lake, Nevada, shared a common wintering area with lesser contaminated night-herons nesting farther north in Oregon and Idaho. Radiotelemetry (29 transmitters) and banding studies indicated that the lesser-contaminated Oregon-Idaho night-herons wintered primarily in coastal Mexico (mean 22-23'N latitude), while the Ruby...
Authors
Charles J. Henny, L. J. Blus
Non-USGS Publications**
Henny, C.J., Wight, H.M., 1969, An endangered osprey population- Estimates of mortality and production: Auk, v. 86, p. 188-198.
Henny, C.J., 1969, Geographical variation in mortality rates and production requirements of the Barn Owl (Tyto alba ssp.): Bird-Banding, v. 40, no. 4, p. 277-290.
Chapman, J.A., Henny, C.J., Wight, H.M., 1969, The status, population dynamics, and harvest of the dusky Canada goose: Wildlife Monographs, no. 18, p. 1-48.
Chapman, J.A., Henny, C.J., 1968, Records of surf scoters found inland in Oregon: Murrelet, v. 49, no. 1, p. 11.
Henny, C.J., 1967, Estimating band-reporting rates from banding and crippling loss data: Journal of Wildlife Management, v. 31, no. 3, p. 533-538.
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Science and Products
If you are unable to access or download a product, email fresc_outreach@usgs.gov a request, including the full citation, or call (541) 750-1030.
If you are unable to access or download a product, email fresc_outreach@usgs.gov a request, including the full citation, or call (541) 750-1030.
Filter Total Items: 213
Recent sightings and a specimen record of the Trumpeter Swan in the Willamette Valley, Oregon Recent sightings and a specimen record of the Trumpeter Swan in the Willamette Valley, Oregon
No abstract available.
Authors
Lawrence J. Blus, Charles J. Henny, M.S. Eltzroth
Persistence of DDT and metabolites in wildlife from Washington State orchards Persistence of DDT and metabolites in wildlife from Washington State orchards
Residues of the DDT group, particularly p,p′-DDT (DDT) were detected in high or unusual amounts in some wildlife samples collected in fruit orchards near Wenatchee, Washington from 1979 to 1983. Samples of birds contained p,p′-DDE (DDE) and DDT in ratios (DDE:DDT) as low as 2.6:1 in eggs and 1.9:1 in brains. An unexpectedly high number (about 50%) of some samples, such as fat of adult...
Authors
L. J. Blus, Charles J. Henny, C. J. Stafford, R. A. Grove
Case histories of bald eagles and other raptors killed by organophosphorus insecticides topically applied to livestock Case histories of bald eagles and other raptors killed by organophosphorus insecticides topically applied to livestock
Since 1982 when secondary poisoning of a red-tailed hawk (Buteo jamaicensis) was documented following the recommended use of famphur applied topically to cattle, the Patuxent Wildlife Research Center has tested dead birds of prey for poisoning by famphur and other pouron organophosphorus (OP) insecticides. Brain cholinesterase (ChE) activity was first determined, then if ChE was...
Authors
Charles J. Henny, E. J. Kolbe, E. F. Hill, L. J. Blus
Field methods to evaluate effects of pesticides on wildlife of the northwestern United States Field methods to evaluate effects of pesticides on wildlife of the northwestern United States
Field .methods used to evaluate the impact of organochlorine and organophosphate pesticides on wildlife populations in the Pacific Northwest are reviewed. Five field studies, presented in a CASE HISTORY format, illustrate study designs .and thetypes of information collected. The pesticides investigated included DDT, heptachlor, endr1n, and famphur, and the species studied included the...
Authors
Charles J. Henny
Concentrations of metals in mink and other mammals from Washington and Idaho Concentrations of metals in mink and other mammals from Washington and Idaho
From 1981 to 1983, concentrations dfof metals were determined in mink Mustela vison, muskrats Ondatra zibethica, and small mammals at one contaminated site in Idaho and at two less contaminated sites in Idaho and Washington. The highest concentrations of Pb and Cd occurred in samples from the Coeur d'Alene River system near or downstream from an extensive mining—smelting complex in...
Authors
L. J. Blus, Charles J. Henny, B.M. Mulhern
Radiotelemetry locates wintering grounds of DDE-contaminated black-crowned night-herons Radiotelemetry locates wintering grounds of DDE-contaminated black-crowned night-herons
This study was designed to determine if night-herons nesting at Ruby Lake, Nevada, shared a common wintering area with lesser contaminated night-herons nesting farther north in Oregon and Idaho. Radiotelemetry (29 transmitters) and banding studies indicated that the lesser-contaminated Oregon-Idaho night-herons wintered primarily in coastal Mexico (mean 22-23'N latitude), while the Ruby...
Authors
Charles J. Henny, L. J. Blus
Non-USGS Publications**
Henny, C.J., Wight, H.M., 1969, An endangered osprey population- Estimates of mortality and production: Auk, v. 86, p. 188-198.
Henny, C.J., 1969, Geographical variation in mortality rates and production requirements of the Barn Owl (Tyto alba ssp.): Bird-Banding, v. 40, no. 4, p. 277-290.
Chapman, J.A., Henny, C.J., Wight, H.M., 1969, The status, population dynamics, and harvest of the dusky Canada goose: Wildlife Monographs, no. 18, p. 1-48.
Chapman, J.A., Henny, C.J., 1968, Records of surf scoters found inland in Oregon: Murrelet, v. 49, no. 1, p. 11.
Henny, C.J., 1967, Estimating band-reporting rates from banding and crippling loss data: Journal of Wildlife Management, v. 31, no. 3, p. 533-538.
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.