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.
Wintering localities of Cooper's hawks nesting in northeastern Oregon
Comparison of breaking strength and shell thickness as evaluators of white-faced ibis eggshell quality
[Book review] Ospreys: A natural and unnatural history
Rise and fall of endrin usage in Washington state fruit orchards: Effects on wildlife
DDE, selenium, mercury, and white-faced ibis reproduction at Carson Lake, Nevada
Environmental contaminants, human disturbance and nesting of double-crested cormorants in northwestern Washington
Rise and fall of endrin usage in Washington state fruit orchards: Effects on wildlife
Effects of organophosphorus insecticides on sage grouse in southeastern Idaho
Organochlorine pollutants in plasma of spring migrant peregrine falcons from coastal Texas, 1984
Organochlorine residues in great blue herons from the northwestern United States
Organochlorines in Alaskan peregrine falcon eggs and their current impact on productivity
Non-USGS Publications**
**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
- Data
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.
- Publications
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: 199Wintering localities of Cooper's hawks nesting in northeastern Oregon
The life span of the Cooper's Hawks banded between 1974 and 1979 is now believed completed. The band recoveries provide the first information on the migratory characteristics of the species in the Pacific Northwest. Cooper's Hawks nesting in northeastern Oregon winter in western Mexico. The second-year female shot near Zihuatanejo, Guerrero, Mexico on November, 12, 1977, is one of the southernmoAuthorsC. J. HennyComparison of breaking strength and shell thickness as evaluators of white-faced ibis eggshell quality
Data from a 1986 field study of white-faced ibis (Plegadis chihi) nesting at Carson Lake, Nevada, were used to compare the utility of eggshell strength measurement and eggshell thickness as indicators of eggshell quality. The ibis population had a history of reproductive failure correlated with elevated egg concentrations of p, p'-DDE, hereafter referred to as DDE. Eggs from 80 nests (one egg/nestAuthorsC. J. Henny, J.K. Bennett[Book review] Ospreys: A natural and unnatural history
The Osprey (Pandion haliaetus) is now arguably the world's best known bird of prey. The DDT-related Osprey population crash in the northeastern United States resulted in an unparalleled amount of research during the last 20 years. In 1969, when I published my first paper on Ospreys in The Auk, there were only three or four osprey papers of consequence in the United States, plus an important paperAuthorsCharles J. HennyRise and fall of endrin usage in Washington state fruit orchards: Effects on wildlife
A study of the effects of endrin on wildlife was conducted from 1981 to 1983 in fruit orchards in central Washington State. The single post-harvest application of endrin as a rodenticide resulted in both acute and chronic toxicity to a variety of avian species. Of 194 birds found dead, brains of 125 were analysed; endrin toxicosis accounted for >24% of the total and 37% of those analysed. Most morAuthorsL. J. Blus, Charles J. Henny, Robert A. GroveDDE, selenium, mercury, and white-faced ibis reproduction at Carson Lake, Nevada
At DDE levels in eggs above 4 ppm, clucth size and productivity decreased, and the incidence of cracked eggs increased. Assuming that 4 ppm DDE is the critical residue level, 40% of the nesting population in 1985 and 1986 was adversely impacted by DDE, with a net loss of 20% of the population's expected production. Selenium and mercury were both accumulated by ibis on the breeding grounds in NeAuthorsC. J. Henny, G.B. HerronEnvironmental contaminants, human disturbance and nesting of double-crested cormorants in northwestern Washington
Double-crested Cormorants (Phalacrocorax auritus) in extreme northwestern Washington produced few young (0.27/occupied nest) in 1984; the clutch size was generally small and eggs, if laid at all, were laid later than usual. Residues (geometric means, wet weight) of DDE (0.58 and 0.59 ppm) in eggs from Colville Island and Protection Island were lower than from other locations in the Pacific NorthweAuthorsC. J. Henny, L. J. Blus, S.P. Thompson, U.W. WilsonRise and fall of endrin usage in Washington state fruit orchards: Effects on wildlife
A study of the effects of endrin on wildlife was conducted from 1981 to 1983 in fruit orchards in central Washington State. The single post-harvest application of endrin as a rodenticide resulted in both acute and chronic toxicity to a variety of avian species. Of 194 birds found dead, brains of 125 were analysed; endrin toxicosis accounted for >24% of the total and 37% of those analysed. Most morAuthorsL. J. Blus, C. J. Henny, R. A. GroveEffects of organophosphorus insecticides on sage grouse in southeastern Idaho
Unverified reports indicated die-offs of sage grouse have occurred since the 1970s in southeastern Idaho. Some verification that organophosphorus insecticides were involved was obtained in 1981 and 1983. A radio telemetry study indicated that dimethoate was responsible for most mortality. Methamidophos also acounted for mortality. Sage grouse populations may be adversely affected by organophosAuthorsL. J. Blus, C.S. Staley, C. J. Henny, G.W. Pendleton, T.H. Craig, E.H. Craig, D.K. HalfordOrganochlorine pollutants in plasma of spring migrant peregrine falcons from coastal Texas, 1984
No abstract available.AuthorsC. J. Henny, K.E. Riddle, C.S. HulseOrganochlorine residues in great blue herons from the northwestern United States
We collected eggs or young Great Blue Herons from eight nesting colonies in the northwestern United States from 1977 through 1982. Subadults were collected at three estuarine areas in Puget Sound in 1981 and dead young or adults were collected at various localities. Nearly all samples analyzed contained organochlorine residues. There was no evidence that nay of the organochlorines detected wereAuthorsR. E. Fitzner, L. J. Blus, C. J. Henny, D.W. CarlileOrganochlorines in Alaskan peregrine falcon eggs and their current impact on productivity
No abstract available.AuthorsRobert E. Ambrose, C. J. Henny, R. E. Hunter, J.A. CrawfordNon-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.