Thirty-eighth breeding bird census. 27. Upland tulip-tree-maple-oak forest
C.S. Robbins
1974, American Birds (28) 1002
The season--April, May, June, 1974
C.S. Robbins
1974, Maryland Birdlife (30) 105-116
Thirty-eighth breeding bird census. 20. Hickory-oak-ash floodplain forest
C.S. Robbins
1974, American Birds (28) 998
Electrophoresis as a management tool
R.P. Morgan II, J.A. Chapman, L.A. Noe, Charles J. Henny
1974, Transactions of the Northeast Fish and Wildlife Conference (31) 63-71
The theme of this 1974 Northeast Fish and Wildlife Conference is 'A New Era'. Indeed, it is a new era for improved techniques to assist in management of our fish and wildlife resources for the maximum benefit of all. In some cases, the new techniques are primarily used...
The season--January, February, March, 1974
C.S. Robbins
1974, Maryland Birdlife (30) 78-81
California condor specimens in collections
S.R. Wilbur
1974, The Wilson Bulletin (86) 71-72
Can the Cooper's hawk survive?
N.F.R. Snyder, Hollice A. Snyder
1974, National Geographic (145) 433-442
The Eastern timber wolf
L.D. Mech
1974, American Forests (80) 46-47
Use of artificial nest structures by everglade kites
P.W. Sykes Jr., R. Chandler
1974, The Wilson Bulletin (86) 282-284
Increased mortality of Cooper's hawks accustomed to man
Hollice A. Snyder, N.F.R. Snyder
1974, Condor (76) 215-216
No abstract available....
First record of Bahama yellowthroat in the United States
P.W. Sykes Jr.
1974, American Birds (28) 14-15
The season--July, August, September, 1974
C.S. Robbins
1974, Maryland Birdlife (30) 139-145
A new profile for the wolf
L.D. Mech
1974, Natural History (83) 26-31
The seventy-fourth Christmas bird count. 320. Back Bay National Wildlife Refuge, Va
P. Sykes Jr.
1974, American Birds (28) 278-279
The seventy-fourth Christmas bird count. 333. Little Creek, Va
P. Sykes Jr.
1974, American Birds (28) 284-285
Subspecific identification of song sparrows collected at Raleigh, N.C.,in summer of 1967
P.W. Sykes Jr., R.C. Laybourne
1974, Chat (38) 77
Additional information on the red crossbill breeding in the lower piedmont region of North Carolina in 1967
P.W. Sykes Jr.
1974, Chat (38) 42-43
Everglade kites feed on nonsnail prey
P.W. Sykes Jr., H.W. Kale II
1974, The Auk (91) 818-820
The Everglade Kite (Rostrhamus sociabilis plumbeus) of Florida has been called snail hawk or snail kite because it was thought to feed exclusively on the soft parts of the freshwater apple snail (Pomacea paludosa) (Nicholson 1926, Howell 1932, Bent 1937, Snyder and Snyder 1969). Furthermore, the other three subspecies of...
Canis lupus
L.D. Mech
1974, Mammalian Species (37) 1-6
No abstract available. ...
Progress report on the North American Breeding Bird Survey
C.S. Robbins, W.T. Van Velzen
1974, Acta Ornithologica (14) 170-191
The Breeding Bird Survey has been monitoring bird population changes in the U.S.A. and Canada since 1966. Each cooperator makes 50 3-minute stops at 0.8-km intervals along randomly selected roadside routes in 4 to 4 1/2 hours on one morning in June of each year. Data from the 1500 to...
Optimal exploitation strategies for an animal population in a stochastic serially correlated environment
David R. Anderson
1974, Dissertation Abstracts International (35) 3107
Optimal exploitation strategies were studied for an animal population in a stochastic, serially correlated environment. This is a general case and encompasses a number of important cases as simplifications. Data on the mallard (Anas platyrhynchos) were used to explore the exploitation strategies and test several hypotheses because relatively...
Effects of dietary mercury and lead on eggshell thickness in mallards
M. A. Haegele, R. K. Tucker, R. H. Hudson
1974, Bulletin of Environmental Contamination and Toxicology (11) 5-11
No abstract available. ...
The effects on systematics of proposed regulations on animal importations
Richard C. Banks
1974, ASC Newsletter (2) 17-21
Red-cockaded woodpecker near Bowie, Maryland
B. Meanley, Matthew C. Perry
1974, Maryland Birdlife (30) 104
Clapper rail in Tamaulipas, Mexico
Richard C. Banks
1974, The Wilson Bulletin (86) 76-77