Publications
This is a list of publications written by Patuxent employees since Patuxent opened in 1939. To search for Patuxent's publications by author or title, please click below to go to the USGS Publication Warehouse.
Filter Total Items: 8128
Lead residues in sora rails from Maryland Lead residues in sora rails from Maryland
During September and October, mi- grating sora rails (Porzana carolina) use tidal marshes of the Patuxent River in Maryland, where they have been hunted for many years. Spent shot accumulates in the marsh during the rail hunting sea- son, and some shot is ingested by the birds. Twelve percent of gizzards from rails collected at the marsh during 1965- 73 contained lead shot (Artmann and...
Authors
Rey C. Stendell, Joseph W. Artmann, Elwood Martin
Brief observations on the breeding biology of the flammulated owl in Colorado Brief observations on the breeding biology of the flammulated owl in Colorado
No abstract available.
Authors
M.L. Richmond, L.R. DeWeese, R.E. Pillmore
Secondary poisoning of owls by anticoagulant rodenticides Secondary poisoning of owls by anticoagulant rodenticides
Anticoagulants-compounds that prevent clotting of the blood-are extensively used for control of small mammal pests. The potential secondary hazards of 6 anticoagulant rodenticides to birds of prey were examined in this study. Whole rats or mice were killed with each anticoagulant and were fed to 1-3 species of owls. Owls died of hemorrhaging after feeding on rats killed with bromadiolone
Authors
Vivian M. Mendenhall, L.F. Pank
Atlantic brant--human commensalism on eelgrass beds in New Jersey Atlantic brant--human commensalism on eelgrass beds in New Jersey
Atlantic Brant Branta bernicla hrota in Barnegat Bay, New Jersey, have established a commensal feeding relationship with man. Small flocks feed 3-5 m from clam fishermen on Zostera torn from the sea bottom by the fishing activities. Background material on the availability and digestibility of different brant foods is presented. This commensalism gives the Brant an efficient food...
Authors
R.E. Kirby, H.H. Obrecht
Aroclor 1242 and reproductive success of adult mallards (Anas platyrhynchos) Aroclor 1242 and reproductive success of adult mallards (Anas platyrhynchos)
Twenty-four pairs of adult mallards were fed a diet containing 0 or 150 ppm of the PCB Aroclor 1242 for 12 weeks during which egg laying was induced. Laying started in both groups an average of 33 days after PCB treatment began. All hens were allowed to lay a 20-egg clutch; 15 eggs from each clutch were artificially incubated. Eleven hens from each group completed the clutch. There was...
Authors
S. D. Haseltine, R. M. Prouty
Additional records of black-legged kittiwakes from the northwestern Hawaiian Islands Additional records of black-legged kittiwakes from the northwestern Hawaiian Islands
No abstract available.
Authors
R. B. Clapp, C.S. Robbins, K.W. Kenyon
Submersed aquatic vegetation in the tidal Potomac Submersed aquatic vegetation in the tidal Potomac
No abstract available.
Authors
V. Carter, J.E. Paschal, G.M. Haramis
Canine tooth wear in captive little brown bats Canine tooth wear in captive little brown bats
Upper canine teeth of little brown bats Myotis lucifugus lucifugus held in stainless steel wire mesh cages underwent severe wear which exceeded that observed previously in caged big brown bats, Eptesicus fuscus fuscus. This suggests a relationship between amount of wear and size of the caged bats with damage increasing as size decreases. Rapid wear of canine teeth by little brown bats...
Authors
Donald R. Clark
Application of miniroutes to bird population studies Application of miniroutes to bird population studies
No abstract available.
Authors
D. Bystrak
Waterfowl status report, 1975. Waterfowl status report, 1975.
No abstract available.
Authors
James R. Goldsberry, Sharon L. Rhoades, Lonnie D. Schroeder, Morton M. Smith