Charles J. Henny (Former Employee)
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
Nineteenth century mercury hazard to wading birds and cormorants of the Carson River, Nevada Nineteenth century mercury hazard to wading birds and cormorants of the Carson River, Nevada
Contemporary mercury interest relates to atmospheric deposition, contaminated fish stocks and exposed fish-eating wildlife. The focus is on methylmercury (MeHg) even though most contamination is of inorganic (IoHg) origin. However, IoHg is readily methylated in aquatic systems to become more hazardous to vertebrates. In response to a classic episode of historical (1859–1890) IoHg...
Authors
Charles J. Henny, E. F. Hill, D. J. Hoffman, M. G. Spalding, R. A. Grove
Ospreys in Oregon and the Pacific Northwest Ospreys in Oregon and the Pacific Northwest
From early April through September each year, famous residents grace the small western town of Corvallis, Oregon. Two ospreys have become mascots of the town since the pair's arrival in 1994. Their nest, built on a 90-foot power pole near the twin bridges over the Willamette River, could be seen by many commuters on their way in and out of town. After the 2002 nesting season, the nest...
Authors
Charles J. Henny, James L. Kaiser, Robert A. Grove
Declining ring-necked pheasants in the Klamath Basin, California: II. Survival, productivity, and cover Declining ring-necked pheasants in the Klamath Basin, California: II. Survival, productivity, and cover
Cover condition and its influence on nesting success, survival, and body condition of ring-necked pheasants (Phasianus colchicus) were evaluated at Tule Lake National Wildlife Refuge (TLNWR) and Lower Klamath National Wildlife Refuge (LKNWR). Inadequate nesting cover was responsible for extremely low nest success early in the nesting season at TLNWR. Later in the season at TLNWR, spring...
Authors
Robert A. Grove, D. R. Buhler, Charles J. Henny, A. D. Drew
Fall migration routes, timing, and wintering sites of North American ospreys as determined by satellite telemetry Fall migration routes, timing, and wintering sites of North American ospreys as determined by satellite telemetry
Satellite telemetry was used to determine fall migratory movements of Ospreys (Pandion haliaetus) breeding in the United States. Study areas were established along the lower Columbia River between Oregon and Washington; in north-central Minnesota; on Shelter Island, New York; and in southern New Jersey. Seventy-four adults (25 males, 49 females) were tracked from 1995 through 1999...
Authors
M.S. Martell, Charles J. Henny, P. Nye, Matthew J. Solensky
Assessment of biological effects of chlorinated hydrocarbons in osprey chicks Assessment of biological effects of chlorinated hydrocarbons in osprey chicks
Osprey (Pandion haliaetus) eggs were collected during 1995 and 1996 at seven sites along the Fraser and Columbia River systems of British Columbia, Canada, and Washington and Oregon, USA. Fifty-four eggs were placed into a laboratory incubator. Thirty-eight of the hatched chicks were sacrificed within 24 h. Hatching success did not differ among sites and therefore between treatment and...
Authors
J. E. Elliott, L. K. Wilson, Charles J. Henny, Suzanne F. Trudeau, Frederick A. Leighton, Sean W. Kennedy, Kimberly M. Cheng
Effects of selenium, mercury, and boron on waterbird egg hatchability at Stillwater, Malheur, Seedskadee, Ouray, and Benton Lake National Wildlife Refuges and surrounding vicinities Effects of selenium, mercury, and boron on waterbird egg hatchability at Stillwater, Malheur, Seedskadee, Ouray, and Benton Lake National Wildlife Refuges and surrounding vicinities
No abstract available.
Authors
Charles J. Henny, R. A. Grove, V.R. Bentley
Seasonal distribution of bird populations at the Patuxent Research Refuge Seasonal distribution of bird populations at the Patuxent Research Refuge
High concentrations of mercury from past mining activities have accumulated in the food chain of fish-eating birds nesting along the mid to lower Carson River. Activities of nine plasma and tissue enzymes, and concentrations of other plasma and tissue constituents were measured for black-crowned night-heron, Nycticorax nycticorax, (BCNH) and snowy egret, Egretta thula, (SE) nestlings...
Authors
D. J. Hoffman, Charles J. Henny, E. F. Hill, J.A. Keith, R. A. Grove
Contaminants in ospreys from the Pacific Northwest: II. Organochlorine pesticides, polychlorinated biphenyls and mercury, 1991-1997 Contaminants in ospreys from the Pacific Northwest: II. Organochlorine pesticides, polychlorinated biphenyls and mercury, 1991-1997
Eggs of ospreys (Pandion haliaetus) were collected over the period 1991 to 1997 at 111 nests in the Fraser and Columbia River drainage systems of British Columbia, Washington, and Oregon. Contents were analyzed for organochlorine (OC) pesticides, polychlorinated biphenyls (PCBs), and total mercury. Blood samples were taken from nestling ospreys at two time points during the 1992 breeding...
Authors
J. E. Elliott, M.M. Macmer, L. K. Wilson, Charles J. Henny
Migration strategies and wintering areas of North American ospreys as revealed by satellite telemetry Migration strategies and wintering areas of North American ospreys as revealed by satellite telemetry
Since 1995 we have trapped and tagged 110 Ospreys (Pandion haliaetus) from 12 study sites in 8 states (Fig. 1). This total includes 71 females, 32 males and 7 juveniles. Our study areas encompass the major Osprey population concentrations found in the United States including the Western States, the Great Lakes region and the Eastern Seaboard.Tagging of nesting pairs along with three...
Authors
Mark S. Martell, Charles J. Henny, P. Nye, Matthew J. Solensky
Field evaluation of lead effects on Canada geese and mallards in the Coeur d'Alene River Basin, Idaho Field evaluation of lead effects on Canada geese and mallards in the Coeur d'Alene River Basin, Idaho
Hatch year (HY) mallards (Anas platyrhynchos) in the Coeur d'Alene (CDA) River Basin had higher concentrations of lead in their blood than HY Western Canada geese (Branta canadensis moffitti) (geometric means 0.98 versus 0.28 μg/g, wet weight). The pattern for adults of both species was similar, although geometric means (1.77 versus 0.41 μg/g) were higher than in HY birds. HY mallards...
Authors
Charles J. Henny, L. J. Blus, D. J. Hoffman, L. Sileo, Daniel J. Audet, Mark R. Snyder
Raptor poisonings and current insecticide use: What do isolated kill reports mean to populations? Raptor poisonings and current insecticide use: What do isolated kill reports mean to populations?
No abstract available.
Authors
Charles J. Henny, P. Mineau, J. E. Elliott, B. Woodbridge
Persistence of high lead concentrations and associated effects in Tundra Swans captured near a mining and smelting complex in northern Idaho Persistence of high lead concentrations and associated effects in Tundra Swans captured near a mining and smelting complex in northern Idaho
Lead poisoning of waterfowl, particularly tundra swans (Cygnus columbianus), has been documented in the Coeur d'Alene River Basin in northern Idaho for nearly a century. Over 90% of the lead-poisoned tundra swans in this area that were necropsied have no ingested lead shot. Spent lead shot from hunting activities over the years is therefore a minor source of lead in these swans. The...
Authors
L. J. Blus, Charles J. Henny, D. J. Hoffman, L. Sileo, D. J. Audet
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
Nineteenth century mercury hazard to wading birds and cormorants of the Carson River, Nevada Nineteenth century mercury hazard to wading birds and cormorants of the Carson River, Nevada
Contemporary mercury interest relates to atmospheric deposition, contaminated fish stocks and exposed fish-eating wildlife. The focus is on methylmercury (MeHg) even though most contamination is of inorganic (IoHg) origin. However, IoHg is readily methylated in aquatic systems to become more hazardous to vertebrates. In response to a classic episode of historical (1859–1890) IoHg...
Authors
Charles J. Henny, E. F. Hill, D. J. Hoffman, M. G. Spalding, R. A. Grove
Ospreys in Oregon and the Pacific Northwest Ospreys in Oregon and the Pacific Northwest
From early April through September each year, famous residents grace the small western town of Corvallis, Oregon. Two ospreys have become mascots of the town since the pair's arrival in 1994. Their nest, built on a 90-foot power pole near the twin bridges over the Willamette River, could be seen by many commuters on their way in and out of town. After the 2002 nesting season, the nest...
Authors
Charles J. Henny, James L. Kaiser, Robert A. Grove
Declining ring-necked pheasants in the Klamath Basin, California: II. Survival, productivity, and cover Declining ring-necked pheasants in the Klamath Basin, California: II. Survival, productivity, and cover
Cover condition and its influence on nesting success, survival, and body condition of ring-necked pheasants (Phasianus colchicus) were evaluated at Tule Lake National Wildlife Refuge (TLNWR) and Lower Klamath National Wildlife Refuge (LKNWR). Inadequate nesting cover was responsible for extremely low nest success early in the nesting season at TLNWR. Later in the season at TLNWR, spring...
Authors
Robert A. Grove, D. R. Buhler, Charles J. Henny, A. D. Drew
Fall migration routes, timing, and wintering sites of North American ospreys as determined by satellite telemetry Fall migration routes, timing, and wintering sites of North American ospreys as determined by satellite telemetry
Satellite telemetry was used to determine fall migratory movements of Ospreys (Pandion haliaetus) breeding in the United States. Study areas were established along the lower Columbia River between Oregon and Washington; in north-central Minnesota; on Shelter Island, New York; and in southern New Jersey. Seventy-four adults (25 males, 49 females) were tracked from 1995 through 1999...
Authors
M.S. Martell, Charles J. Henny, P. Nye, Matthew J. Solensky
Assessment of biological effects of chlorinated hydrocarbons in osprey chicks Assessment of biological effects of chlorinated hydrocarbons in osprey chicks
Osprey (Pandion haliaetus) eggs were collected during 1995 and 1996 at seven sites along the Fraser and Columbia River systems of British Columbia, Canada, and Washington and Oregon, USA. Fifty-four eggs were placed into a laboratory incubator. Thirty-eight of the hatched chicks were sacrificed within 24 h. Hatching success did not differ among sites and therefore between treatment and...
Authors
J. E. Elliott, L. K. Wilson, Charles J. Henny, Suzanne F. Trudeau, Frederick A. Leighton, Sean W. Kennedy, Kimberly M. Cheng
Effects of selenium, mercury, and boron on waterbird egg hatchability at Stillwater, Malheur, Seedskadee, Ouray, and Benton Lake National Wildlife Refuges and surrounding vicinities Effects of selenium, mercury, and boron on waterbird egg hatchability at Stillwater, Malheur, Seedskadee, Ouray, and Benton Lake National Wildlife Refuges and surrounding vicinities
No abstract available.
Authors
Charles J. Henny, R. A. Grove, V.R. Bentley
Seasonal distribution of bird populations at the Patuxent Research Refuge Seasonal distribution of bird populations at the Patuxent Research Refuge
High concentrations of mercury from past mining activities have accumulated in the food chain of fish-eating birds nesting along the mid to lower Carson River. Activities of nine plasma and tissue enzymes, and concentrations of other plasma and tissue constituents were measured for black-crowned night-heron, Nycticorax nycticorax, (BCNH) and snowy egret, Egretta thula, (SE) nestlings...
Authors
D. J. Hoffman, Charles J. Henny, E. F. Hill, J.A. Keith, R. A. Grove
Contaminants in ospreys from the Pacific Northwest: II. Organochlorine pesticides, polychlorinated biphenyls and mercury, 1991-1997 Contaminants in ospreys from the Pacific Northwest: II. Organochlorine pesticides, polychlorinated biphenyls and mercury, 1991-1997
Eggs of ospreys (Pandion haliaetus) were collected over the period 1991 to 1997 at 111 nests in the Fraser and Columbia River drainage systems of British Columbia, Washington, and Oregon. Contents were analyzed for organochlorine (OC) pesticides, polychlorinated biphenyls (PCBs), and total mercury. Blood samples were taken from nestling ospreys at two time points during the 1992 breeding...
Authors
J. E. Elliott, M.M. Macmer, L. K. Wilson, Charles J. Henny
Migration strategies and wintering areas of North American ospreys as revealed by satellite telemetry Migration strategies and wintering areas of North American ospreys as revealed by satellite telemetry
Since 1995 we have trapped and tagged 110 Ospreys (Pandion haliaetus) from 12 study sites in 8 states (Fig. 1). This total includes 71 females, 32 males and 7 juveniles. Our study areas encompass the major Osprey population concentrations found in the United States including the Western States, the Great Lakes region and the Eastern Seaboard.Tagging of nesting pairs along with three...
Authors
Mark S. Martell, Charles J. Henny, P. Nye, Matthew J. Solensky
Field evaluation of lead effects on Canada geese and mallards in the Coeur d'Alene River Basin, Idaho Field evaluation of lead effects on Canada geese and mallards in the Coeur d'Alene River Basin, Idaho
Hatch year (HY) mallards (Anas platyrhynchos) in the Coeur d'Alene (CDA) River Basin had higher concentrations of lead in their blood than HY Western Canada geese (Branta canadensis moffitti) (geometric means 0.98 versus 0.28 μg/g, wet weight). The pattern for adults of both species was similar, although geometric means (1.77 versus 0.41 μg/g) were higher than in HY birds. HY mallards...
Authors
Charles J. Henny, L. J. Blus, D. J. Hoffman, L. Sileo, Daniel J. Audet, Mark R. Snyder
Raptor poisonings and current insecticide use: What do isolated kill reports mean to populations? Raptor poisonings and current insecticide use: What do isolated kill reports mean to populations?
No abstract available.
Authors
Charles J. Henny, P. Mineau, J. E. Elliott, B. Woodbridge
Persistence of high lead concentrations and associated effects in Tundra Swans captured near a mining and smelting complex in northern Idaho Persistence of high lead concentrations and associated effects in Tundra Swans captured near a mining and smelting complex in northern Idaho
Lead poisoning of waterfowl, particularly tundra swans (Cygnus columbianus), has been documented in the Coeur d'Alene River Basin in northern Idaho for nearly a century. Over 90% of the lead-poisoned tundra swans in this area that were necropsied have no ingested lead shot. Spent lead shot from hunting activities over the years is therefore a minor source of lead in these swans. The...
Authors
L. J. Blus, Charles J. Henny, D. J. Hoffman, L. Sileo, D. J. Audet
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.