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
An evaluation of blood plasma for monitoring DDE in birds of prey An evaluation of blood plasma for monitoring DDE in birds of prey
Laboratory and field studies show that DDE residues in blood plasma are highly correlated with DDE in the brain, the rate of DDE exposure and the amount of DDE in eggs of free-living birds of prey. A blood sampling approach is proposed to supplement existing environmental contaminant methods available for birds of prey. Residues (ΣDDT) in plasma provide some direct information; however...
Authors
Charles J. Henny, D. L. Meeker
A review of bufflehead sex and age criteria with notes on weights A review of bufflehead sex and age criteria with notes on weights
Summary: Buftleheads Bucephala albeola were collected along the Oregon coast during the hunting season. Birds were first sexed and aged upon cloacal and internal characteristics. Results were then compared with data derived from wing plumage. A small change was made in Carney's (1964) wing plumage key to improve its accuracy. Although only a few studies have been made of Bufflehead...
Authors
Charles J. Henny, J.L. Carter, Barbara J. Carter
Artificial burrows provide new insight into burrowing owl nesting biology Artificial burrows provide new insight into burrowing owl nesting biology
No abstract available.
Authors
Charles J. Henny, L. J. Blus
Low DDT residues in plasma of bald eagles (Haliaeetus leucocephalus) wintering in Colorado and Missouri Low DDT residues in plasma of bald eagles (Haliaeetus leucocephalus) wintering in Colorado and Missouri
No abstract available.
Authors
Charles J. Henny, C.R. Griffin, D.W. Stahlecker, A.R. Harmata, E. Cromartie
PCBs and organochlorine pesticides in wild mink and river otters from Oregon PCBs and organochlorine pesticides in wild mink and river otters from Oregon
Mink (Mustela vison) and river otters (Lutra canadensis) collected during the 1978-1979 trapping season in Oregon were analyzed for organochlorine pesticide and polychlorinated biphenyl (PCB) residues. PCB residues were most frequently encountered in both species from the Lower Columbia River. PCB residues in 6 of 9 Columbia River mink livers were as high as those reported in livers of
Authors
Charles J. Henny, L. J. Blus, S.V. Gregory, C. J. Stafford
Pollution ecology of breeding great blue herons in the Columbia Basin, Oregon and Washington Pollution ecology of breeding great blue herons in the Columbia Basin, Oregon and Washington
Approximately 40 pairs of Great Blue Herons (Ardea herodias) formerly nested in trees on or near Blalock Island about 95 km downstream from Richland, Washington, in the Columbia River (Nehls 1972 ). In conjunction with construction of the John Day Lock and Dam and before creating Lake Umatilla in 1968, large trees along the shoreline, including those in the heronry on Blalock Island...
Authors
L. J. Blus, Charles J. Henny, T. E. Kaiser
Canada geese incubate eggs laid in previous years Canada geese incubate eggs laid in previous years
No abstract available.
Authors
L. J. Blus, Charles J. Henny
Inhibition of brain cholinesterase activity in forest birds and squirrels exposed to aerially applied acephate Inhibition of brain cholinesterase activity in forest birds and squirrels exposed to aerially applied acephate
No abstract available.
Authors
J.G. Zinkl, R.B. Roberts, Charles J. Henny, D.J. Lenhart
Early concentrations of Brown Pelicans along southern Oregon coast Early concentrations of Brown Pelicans along southern Oregon coast
The California Brown Pelican (Pelecanus occidentalis californicus), which nests in southern California and Mexico, wanders north along the coast after the breeding season, sometimes as far as southern British Columbia (A.O.U. 1957). Anderson and Anderson (1976) and Ainley (1972) report that Mexico-originating pelicans disperse north in late summer and fall, increasing California coastal...
Authors
Charles J. Henny, J.A. Collins
Annual weight cycle in wild screech owls Annual weight cycle in wild screech owls
The annual weight cycle of wild birds of prey has received little attention in the past, primarily because of the difficulty in capturing and recapturing them. Screech Owls (Otus asio) are resident in our northern Ohio study area and readily occupy nest boxes established for Wood Ducks (Aix sponsa) (see VanCamp and Henny 1975). In addition to nesting in the boxes, the owls use them as...
Authors
Charles J. Henny, Laurel F. VanCamp
Response of breeding birds to aerial sprays of trichlorfon (Dylox) and carbaryl (Sevin-4-Oil) in Montana forests Response of breeding birds to aerial sprays of trichlorfon (Dylox) and carbaryl (Sevin-4-Oil) in Montana forests
No abstract available.
Authors
Lawrence R. DeWeese, Charles J. Henny, Randy L. Floyd, Kathie A. Bobal, Albert W. Schultz
Effects of heptachlor-treated cereal grains on Canada geese in the Columbia Basin Effects of heptachlor-treated cereal grains on Canada geese in the Columbia Basin
In 1976 and 1977, die-offs of birds of several species occurred in Umatilla and Morrow counties, Oregon. Detection of high levels of heptachlor epoxide (HE) in tissues of Canada geese (Branta canadensis) prompted this study to determine the extent and impact of heptachlor contamination on geese on two study areas on the Columbia River--the Umatilla National Wildlife Refuge (Umatilla) in...
Authors
L. J. Blus, Charles J. Henny, D.J. Lenhart, E. Cromartie
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
An evaluation of blood plasma for monitoring DDE in birds of prey An evaluation of blood plasma for monitoring DDE in birds of prey
Laboratory and field studies show that DDE residues in blood plasma are highly correlated with DDE in the brain, the rate of DDE exposure and the amount of DDE in eggs of free-living birds of prey. A blood sampling approach is proposed to supplement existing environmental contaminant methods available for birds of prey. Residues (ΣDDT) in plasma provide some direct information; however...
Authors
Charles J. Henny, D. L. Meeker
A review of bufflehead sex and age criteria with notes on weights A review of bufflehead sex and age criteria with notes on weights
Summary: Buftleheads Bucephala albeola were collected along the Oregon coast during the hunting season. Birds were first sexed and aged upon cloacal and internal characteristics. Results were then compared with data derived from wing plumage. A small change was made in Carney's (1964) wing plumage key to improve its accuracy. Although only a few studies have been made of Bufflehead...
Authors
Charles J. Henny, J.L. Carter, Barbara J. Carter
Artificial burrows provide new insight into burrowing owl nesting biology Artificial burrows provide new insight into burrowing owl nesting biology
No abstract available.
Authors
Charles J. Henny, L. J. Blus
Low DDT residues in plasma of bald eagles (Haliaeetus leucocephalus) wintering in Colorado and Missouri Low DDT residues in plasma of bald eagles (Haliaeetus leucocephalus) wintering in Colorado and Missouri
No abstract available.
Authors
Charles J. Henny, C.R. Griffin, D.W. Stahlecker, A.R. Harmata, E. Cromartie
PCBs and organochlorine pesticides in wild mink and river otters from Oregon PCBs and organochlorine pesticides in wild mink and river otters from Oregon
Mink (Mustela vison) and river otters (Lutra canadensis) collected during the 1978-1979 trapping season in Oregon were analyzed for organochlorine pesticide and polychlorinated biphenyl (PCB) residues. PCB residues were most frequently encountered in both species from the Lower Columbia River. PCB residues in 6 of 9 Columbia River mink livers were as high as those reported in livers of
Authors
Charles J. Henny, L. J. Blus, S.V. Gregory, C. J. Stafford
Pollution ecology of breeding great blue herons in the Columbia Basin, Oregon and Washington Pollution ecology of breeding great blue herons in the Columbia Basin, Oregon and Washington
Approximately 40 pairs of Great Blue Herons (Ardea herodias) formerly nested in trees on or near Blalock Island about 95 km downstream from Richland, Washington, in the Columbia River (Nehls 1972 ). In conjunction with construction of the John Day Lock and Dam and before creating Lake Umatilla in 1968, large trees along the shoreline, including those in the heronry on Blalock Island...
Authors
L. J. Blus, Charles J. Henny, T. E. Kaiser
Canada geese incubate eggs laid in previous years Canada geese incubate eggs laid in previous years
No abstract available.
Authors
L. J. Blus, Charles J. Henny
Inhibition of brain cholinesterase activity in forest birds and squirrels exposed to aerially applied acephate Inhibition of brain cholinesterase activity in forest birds and squirrels exposed to aerially applied acephate
No abstract available.
Authors
J.G. Zinkl, R.B. Roberts, Charles J. Henny, D.J. Lenhart
Early concentrations of Brown Pelicans along southern Oregon coast Early concentrations of Brown Pelicans along southern Oregon coast
The California Brown Pelican (Pelecanus occidentalis californicus), which nests in southern California and Mexico, wanders north along the coast after the breeding season, sometimes as far as southern British Columbia (A.O.U. 1957). Anderson and Anderson (1976) and Ainley (1972) report that Mexico-originating pelicans disperse north in late summer and fall, increasing California coastal...
Authors
Charles J. Henny, J.A. Collins
Annual weight cycle in wild screech owls Annual weight cycle in wild screech owls
The annual weight cycle of wild birds of prey has received little attention in the past, primarily because of the difficulty in capturing and recapturing them. Screech Owls (Otus asio) are resident in our northern Ohio study area and readily occupy nest boxes established for Wood Ducks (Aix sponsa) (see VanCamp and Henny 1975). In addition to nesting in the boxes, the owls use them as...
Authors
Charles J. Henny, Laurel F. VanCamp
Response of breeding birds to aerial sprays of trichlorfon (Dylox) and carbaryl (Sevin-4-Oil) in Montana forests Response of breeding birds to aerial sprays of trichlorfon (Dylox) and carbaryl (Sevin-4-Oil) in Montana forests
No abstract available.
Authors
Lawrence R. DeWeese, Charles J. Henny, Randy L. Floyd, Kathie A. Bobal, Albert W. Schultz
Effects of heptachlor-treated cereal grains on Canada geese in the Columbia Basin Effects of heptachlor-treated cereal grains on Canada geese in the Columbia Basin
In 1976 and 1977, die-offs of birds of several species occurred in Umatilla and Morrow counties, Oregon. Detection of high levels of heptachlor epoxide (HE) in tissues of Canada geese (Branta canadensis) prompted this study to determine the extent and impact of heptachlor contamination on geese on two study areas on the Columbia River--the Umatilla National Wildlife Refuge (Umatilla) in...
Authors
L. J. Blus, Charles J. Henny, D.J. Lenhart, E. Cromartie
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.