-
1
-
-
0031801182
-
Avian abundance in CRP and crop fields during winter in the midwest
-
BEST, L. B., H. CAMPA, III, K. E. KEMP, R. J. ROBEL, M. R. RYAN, J. A. SAVIDGE, H. P. WEEKS, JR., AND S. R. WINTERSTEIN. 1998. Avian abundance in CRP and crop fields during winter in the midwest. Am. Midi. Nat. 139:311-324.
-
(1998)
Am. Midi. Nat.
, vol.139
, pp. 311-324
-
-
Best, L.B.1
Campa III, H.2
Kemp, K.E.3
Robel, R.J.4
Ryan, M.R.5
Savidge, J.A.6
Weeks Jr., H.P.7
Winterstein, S.R.8
-
2
-
-
0002573891
-
Estimation of density from line transect sampling of biological populations
-
BURNHAM, K. P., D. R. ANDERSON, AND J. L. LAAKE. 1980. Estimation of density from line transect sampling of biological populations. Wildl. Monogr. 72:1-202.
-
(1980)
Wildl. Monogr.
, vol.72
, pp. 1-202
-
-
Burnham, K.P.1
Anderson, D.R.2
Laake, J.L.3
-
3
-
-
18444381102
-
Effects of observers using different methods upon the total population estimates of two resident island birds
-
CONANT, S., M. S. COLLINS, AND C. J. RALPH. 1981. Effects of observers using different methods upon the total population estimates of two resident island birds. Stud. Avian Biol. 6:377-381.
-
(1981)
Stud. Avian Biol.
, vol.6
, pp. 377-381
-
-
Conant, S.1
Collins, M.S.2
Ralph, C.J.3
-
4
-
-
0013047039
-
The usefulness of absolute ("census") and relative ("sampling" or "index") measures of abundance
-
DAWSON, D. G. 1981. The usefulness of absolute ("census") and relative ("sampling" or "index") measures of abundance. Stud. Avian Biol. 6:554-558.
-
(1981)
Stud. Avian Biol.
, vol.6
, pp. 554-558
-
-
Dawson, D.G.1
-
5
-
-
0032221526
-
Comparison of line-transect, spot-map, and point-count surveys for birds in riparian habitats of the great basin
-
DOBKIN, D. S., AND A. C. RICH. 1998. Comparison of line-transect, spot-map, and point-count surveys for birds in riparian habitats of the great basin. J. Field Ornithol. 69:430-443.
-
(1998)
J. Field Ornithol.
, vol.69
, pp. 430-443
-
-
Dobkin, D.S.1
Rich, A.C.2
-
7
-
-
0004049354
-
-
Simon and Schuster, Inc., New York
-
EHRLICH, P. R., D. S. DOBKIN, AND D. WHEYE. 1988. The birder's handbook: a field guide to the natural history of North American birds. Simon and Schuster, Inc., New York. 785 pp.
-
(1988)
The Birder's Handbook: A Field Guide to the Natural History of North American Birds
-
-
Ehrlich, P.R.1
Dobkin, D.S.2
Wheye, D.3
-
8
-
-
0030743639
-
The distribution of neotropical migrant birds wintering in the El Cielo Biosphere Reserve, Tamaulipas, Mexico
-
GRAM, W. R., AND J. FAABORG. 1997. The distribution of neotropical migrant birds wintering in the El Cielo Biosphere Reserve, Tamaulipas, Mexico. Condor 99:658-670.
-
(1997)
Condor
, vol.99
, pp. 658-670
-
-
Gram, W.R.1
Faaborg, J.2
-
9
-
-
0000231925
-
Estimating winter species richness with unlimited-distance point counts
-
GUTZWILLER, K. J. 1991. Estimating winter species richness with unlimited-distance point counts. Auk 108:853-862.
-
(1991)
Auk
, vol.108
, pp. 853-862
-
-
Gutzwiller, K.J.1
-
11
-
-
0022843606
-
A fixed-radius point count method for nonbreeding and breeding season use
-
HUTTO, R. L., S. M. PLETSCHET, AND P. HENDRICKS. 1986. A fixed-radius point count method for nonbreeding and breeding season use. Auk 103:593-602.
-
(1986)
Auk
, vol.103
, pp. 593-602
-
-
Hutto, R.L.1
Pletschet, S.M.2
Hendricks, P.3
-
12
-
-
0000564343
-
Relation of hay harvesting to duck nesting under a refuge-permittee system
-
LABISKY, R. F. 1957. Relation of hay harvesting to duck nesting under a refuge-permittee system. J. Wildl. Manage. 21:194-200.
-
(1957)
J. Wildl. Manage.
, vol.21
, pp. 194-200
-
-
Labisky, R.F.1
-
13
-
-
0006049586
-
An investigation of the effect of seasonal activity levels on avian censusing
-
RALPH, C.J. 1981. An investigation of the effect of seasonal activity levels on avian censusing. Stud. Avian Biol. 6:265-270.
-
(1981)
Stud. Avian Biol.
, vol.6
, pp. 265-270
-
-
Ralph, C.J.1
-
14
-
-
0003891739
-
-
USDA For. Ser. Gen. Tech. Rep. PSW-GTR-144, Pacific Southwest Res. Stn., Albany, California
-
_, G. R. GEUPEL, P. PYLE, T. E. MARTIN, AND D. F. DESANTE. 1993. Handbook of field methods for monitoring landbirds. USDA For. Ser. Gen. Tech. Rep. PSW-GTR-144, Pacific Southwest Res. Stn., Albany, California. 41 pp.
-
(1993)
Handbook of Field Methods for Monitoring Landbirds
-
-
Geupel, G.R.1
Pyle, P.2
Martin, T.E.3
Desante, D.F.4
-
15
-
-
0032263212
-
Migratory bird habitat use in southern Mexico: Mist nets versus point counts
-
RAPPOLE, J. H., K. WINKLER, AND G. V. N. POWELL. 1998. Migratory bird habitat use in southern Mexico: mist nets versus point counts. J. Field Ornithol. 69:635-643.
-
(1998)
J. Field Ornithol.
, vol.69
, pp. 635-643
-
-
Rappole, J.H.1
Winkler, K.2
Powell, G.V.N.3
-
16
-
-
1842476486
-
An appraisal of the winter bird-population study technique
-
ROBBINS, C. S. 1972. An appraisal of the winter bird-population study technique. Am. Birds 26:688-692.
-
(1972)
Am. Birds
, vol.26
, pp. 688-692
-
-
Robbins, C.S.1
-
17
-
-
0001026509
-
Effect of time of day on bird activity
-
_. 1981a. Effect of time of day on bird activity. Stud. Avian Biol. 6:275-286.
-
(1981)
Stud. Avian Biol.
, vol.6
, pp. 275-286
-
-
-
18
-
-
0011461205
-
Reappraisal of the winter bird-population study technique
-
_. 1981b. Reappraisal of the winter bird-population study technique. Stud. Avian Biol. 6:52-57.
-
(1981)
Stud. Avian Biol.
, vol.6
, pp. 52-57
-
-
-
19
-
-
18444417068
-
Bird activity levels related to weather
-
_. 1981c. Bird activity levels related to weather. Stud. Avian Biol. 6:275-286.
-
(1981)
Stud. Avian Biol.
, vol.6
, pp. 275-286
-
-
-
20
-
-
0001401762
-
Effects of time of day and season on winter bird counts
-
ROLLFINKE, B. F., AND R. H. YAHNER. 1990. Effects of time of day and season on winter bird counts. Condor 92:215-219.
-
(1990)
Condor
, vol.92
, pp. 215-219
-
-
Rollfinke, B.F.1
Yahner, R.H.2
-
21
-
-
0001489925
-
Distance estimation as a variable in estimating bird numbers
-
SCOTT, J. M., F. L. RAMSEY, AND C. B. KEPLER. 1981. Distance estimation as a variable in estimating bird numbers. Stud. Avian Biol. 6:334-340.
-
(1981)
Stud. Avian Biol.
, vol.6
, pp. 334-340
-
-
Scott, J.M.1
Ramsey, F.L.2
Kepler, C.B.3
-
22
-
-
0003276951
-
The effect of time of day on avian census results
-
SHIELDS, W. M. 1977. The effect of time of day on avian census results. Auk 94:380-383.
-
(1977)
Auk
, vol.94
, pp. 380-383
-
-
Shields, W.M.1
-
23
-
-
0001475278
-
Observer and annual variation in winter bird population studies
-
SMITH, P. G. R. 1984. Observer and annual variation in winter bird population studies. Wilson Bull. 96:561-574.
-
(1984)
Wilson Bull.
, vol.96
, pp. 561-574
-
-
Smith, P.G.R.1
-
25
-
-
0000547692
-
Assessment of counting techniques
-
VERNER, J. 1985. Assessment of counting techniques. Curr. Ornithol. 2:247-302.
-
(1985)
Curr. Ornithol.
, vol.2
, pp. 247-302
-
-
Verner, J.1
-
26
-
-
0030828078
-
A comparison of two bird survey techniques used in a subtropical forest
-
WHITMAN, A. A., J. M. HAGAN III, AND N. V. L. BROKAW. 1997. A comparison of two bird survey techniques used in a subtropical forest. Condor 99:955-965.
-
(1997)
Condor
, vol.99
, pp. 955-965
-
-
Whitman, A.A.1
Hagan III, J.M.2
Brokaw, N.V.L.3
|