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
Effects of pelletized anticoagulant rodenticides on California quail Effects of pelletized anticoagulant rodenticides on California quail
A moribund, emaciated California quail (Callipepla californica) that was found in an orchard in the state of Washington had an impacted crop and gizzard. Pellets containing the anticoagulant chlorophacinone (Rozol, RO) were in the crop; the gizzard contents consisted of a pink mass of paraffin that was selectively accumulated from the paraffinized pellets. The plasma prothrombin time of...
Authors
L. J. Blus, Charles J. Henny, R. A. Grove
Organochlorine-induced mortality and residues in long-billed curlews from Oregon Organochlorine-induced mortality and residues in long-billed curlews from Oregon
No abstract available.
Authors
L. J. Blus, Charles J. Henny, A. J. Krynitsky
Organophosphate insecticide (famphur) topically applied to cattle kills magpies and hawks Organophosphate insecticide (famphur) topically applied to cattle kills magpies and hawks
A systematic field study of a black-billed magpie (Pica pica) population revealed that magpies and red-tailed hawks (Buteo jamaicensis) were killed by famphur (=famophos, Warbex®) used as a pouron to control cattle warbles (Hypoderma sp.). Magpie mortality began on treatment day and continued for more than 3 months (38 found dead); mortality peaked between Day 5 and Day 13. Estimates of...
Authors
Charles J. Henny, L. J. Blus, E. J. Kolbe, R. E. Fitzner
Effects of heptachlor- and lindane-treated seed on Canada geese Effects of heptachlor- and lindane-treated seed on Canada geese
A study of Canada geese (B. canadensis) was conducted in the Pacific Northwest from 1978 through 1981. Lowered reproductive success, mortality of adults, and a population decline of resident western Canada geese (B. c. moffitti) at the Umatilla National Wildlife Refuge (Umatilla NWR) Oregon and Washington [USA] were associated with the use of heptachlor-treated wheat. Analyses of eggs...
Authors
L. J. Blus, Charles J. Henny, D.J. Lenhart, T. E. Kaiser
Monitoring bald eagle nesting in Baja California, Mexico Monitoring bald eagle nesting in Baja California, Mexico
No abstract available.
Authors
B. Conant, A.N. Novara, Charles J. Henny
Heptachlor seed treatment contaminates hawks, owls, and eagles of Columbia Basin, Oregon Heptachlor seed treatment contaminates hawks, owls, and eagles of Columbia Basin, Oregon
We evaluated organochlorine residues in 12 species of hawks. owls, and eagles from the Columbia Basin of Oregon between 1978 and 1981. Companion studies showed that heptachlor epoxide (HE) induced adult mortality and reduced productivity of the Canada Goose (Branta canadensis) and American Kestrel (Falco sparverius).ln this study, brain tissue from raptors found dead and sample eggs from...
Authors
Charles J. Henny, L. J. Blus, T. E. Kaiser
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
Effects of pelletized anticoagulant rodenticides on California quail Effects of pelletized anticoagulant rodenticides on California quail
A moribund, emaciated California quail (Callipepla californica) that was found in an orchard in the state of Washington had an impacted crop and gizzard. Pellets containing the anticoagulant chlorophacinone (Rozol, RO) were in the crop; the gizzard contents consisted of a pink mass of paraffin that was selectively accumulated from the paraffinized pellets. The plasma prothrombin time of...
Authors
L. J. Blus, Charles J. Henny, R. A. Grove
Organochlorine-induced mortality and residues in long-billed curlews from Oregon Organochlorine-induced mortality and residues in long-billed curlews from Oregon
No abstract available.
Authors
L. J. Blus, Charles J. Henny, A. J. Krynitsky
Organophosphate insecticide (famphur) topically applied to cattle kills magpies and hawks Organophosphate insecticide (famphur) topically applied to cattle kills magpies and hawks
A systematic field study of a black-billed magpie (Pica pica) population revealed that magpies and red-tailed hawks (Buteo jamaicensis) were killed by famphur (=famophos, Warbex®) used as a pouron to control cattle warbles (Hypoderma sp.). Magpie mortality began on treatment day and continued for more than 3 months (38 found dead); mortality peaked between Day 5 and Day 13. Estimates of...
Authors
Charles J. Henny, L. J. Blus, E. J. Kolbe, R. E. Fitzner
Effects of heptachlor- and lindane-treated seed on Canada geese Effects of heptachlor- and lindane-treated seed on Canada geese
A study of Canada geese (B. canadensis) was conducted in the Pacific Northwest from 1978 through 1981. Lowered reproductive success, mortality of adults, and a population decline of resident western Canada geese (B. c. moffitti) at the Umatilla National Wildlife Refuge (Umatilla NWR) Oregon and Washington [USA] were associated with the use of heptachlor-treated wheat. Analyses of eggs...
Authors
L. J. Blus, Charles J. Henny, D.J. Lenhart, T. E. Kaiser
Monitoring bald eagle nesting in Baja California, Mexico Monitoring bald eagle nesting in Baja California, Mexico
No abstract available.
Authors
B. Conant, A.N. Novara, Charles J. Henny
Heptachlor seed treatment contaminates hawks, owls, and eagles of Columbia Basin, Oregon Heptachlor seed treatment contaminates hawks, owls, and eagles of Columbia Basin, Oregon
We evaluated organochlorine residues in 12 species of hawks. owls, and eagles from the Columbia Basin of Oregon between 1978 and 1981. Companion studies showed that heptachlor epoxide (HE) induced adult mortality and reduced productivity of the Canada Goose (Branta canadensis) and American Kestrel (Falco sparverius).ln this study, brain tissue from raptors found dead and sample eggs from...
Authors
Charles J. Henny, L. J. Blus, T. E. Kaiser
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.