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
Use of miniroutes and Breeding Bird Survey data to estimate abundance Use of miniroutes and Breeding Bird Survey data to estimate abundance
1. Information on relative abundance is easily obtained and adds greatly to the value of an atlas project. 2. The Breeding Bird Survey (BBS) provides annual counts (birds per 50 roadside stops) that can be used to: (1) map relative abundance by physiographic region within a state or province, (2) map relative abundance on a more local scale by using results from individual routes, or (3)...
Authors
C.S. Robbins, B.A. Dowell
Forest-wildlife management techniques on the Moosehorn National Wildlife Refuge Forest-wildlife management techniques on the Moosehorn National Wildlife Refuge
No abstract available.
Authors
G.F. Sepik, D.M. Mullen, T.J. Dwyer, E.L. Derleth, D.G. McAuley
Selenium and heavy metals in San Francisco Bay diving ducks Selenium and heavy metals in San Francisco Bay diving ducks
We analyzed for selenium (Se) and heavy metals in greater scaups (Aythya marila) and surf scoters (Melanitta perspicillata) collected from southern San Francisco Bay in March and April 1982. There were no differences (P > 0.05) between species for liver concentrations of silver (Ag), mercury (Hg), or lead (Pb). Copper (Cu) (P 0.001) and zinc (Zn) (P 0.01) levels were higher in scaups...
Authors
Harry M. Ohlendorf, Roy W. Lowe, Paul R. Kelly, Thomas E. Harvey
The eighty-sixth Christmas bird count. 457. Ocean City, MD The eighty-sixth Christmas bird count. 457. Ocean City, MD
No abstract available.
Authors
C.S. Robbins
The eighty-sixth Christmas bird count. Georgia, Florida The eighty-sixth Christmas bird count. Georgia, Florida
No abstract available.
Authors
P.W. Sykes
Effects of body weight and age on the time and pairing of American black ducks Effects of body weight and age on the time and pairing of American black ducks
I used captive young and adult American Black Ducks (Anas rubripes) during October-February 1984-1985 to test whether body weight and age affected time of pair-bond formation. Eighty ducks were marked individually, and 10 ducks (6 males and 4 females, half of each age class) were assigned to each of 8 experimental pens. Ducks in 4 pens received an ad libitum diet of commercial duck food...
Authors
Gary R. Hepp
A summary of alcid records from Hawaii A summary of alcid records from Hawaii
Abstract.-Four species of alcids have now been recorded frorn Hawaii. Two of them, the Tufted Puffin (Fratercula cirrhata and the Cassin's Auklet (Ptychoramchus aleuticus) have been found only once; the occurrence of the latter is reported here for the first time. two other alcids, the Horned Puffin (Fratercula arctica) and the Parakeet .Auklet (Cyclorrhynchus psittacula) have been...
Authors
R. B. Clapp
Genetic management of captive masked bobwhites Genetic management of captive masked bobwhites
No abstract available.
Authors
R. R. Gabel
California condor recovery program California condor recovery program
No abstract available.
Authors
N.F.R. Snyder
Mercury, selenium, cadmium and organochlorines in eggs of three Hawaiian seabird species Mercury, selenium, cadmium and organochlorines in eggs of three Hawaiian seabird species
Eggs of three representative species of seabirds (wedge-tailed shearwater Puffinus pacificus; red-footed booby Sula sula; and sooty tern Sterna fuscata) were collected in 1980 to determined differences in heavy metal, Se, and organochlorine residues among species nesting in the Hawaiian Archipelago and among the four nesting sites sampled (Oahu, French Frigate Shoals, Laysan, and Midway)...
Authors
H. M. Ohlendorf, S. Harrison