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President's Message: One hundred years in perspective the changing roles and objectives of The Ottawa Field-Naturahsts' Club
Vol 93, Iss 1, Page 1
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Biology - the unknown science?
Vol 93, Iss 1, Page 6
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The Canadian Field-Naturalist - the status quo or a new direction?
Vol 93, Iss 1, Page 10
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Demographic and dietary responses of Red-tailed Hawks during a Snowshoe Hare fluctuation
Vol 93, Iss 1, Page 16
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The Oriskany sandstone outcrop and associated natural features, a unique occurrence in Canada
Vol 93, Iss 1, Page 28
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Breeding areas and overnight roosting locations in the northern range of the Monarch Butterfly (Danaus plexippus plexippus) with a summary of associated migratory routes
Vol 93, Iss 1, Page 41
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Reproductive biology of the Big Brown Bat (Eptesicus fuscus) in Alberta
Vol 93, Iss 1, Page 48
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Wild Mallard stocking in a large marsh habitat
Vol 93, Iss 1, Page 55
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Recent collections of the Black Redhorse, Moxostoma duquesnei, from Ontario
Vol 93, Iss 1, Page 63
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Xanthochroism in the Evening Grosbeak
Vol 93, Iss 1, Page 66
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Interaction between a Long-tailed Weasel and a Snowy Owl
Vol 93, Iss 1, Page 67
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Black-necked Stilts nesting near Edmonton, Alberta
Vol 93, Iss 1, Page 68
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Common Garter Snake predation on Robin nestlings
Vol 93, Iss 1, Page 70
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Distribution and movements of Selkirk Caribou. 1972-1974
Vol 93, Iss 1, Page 71
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Effects of fire on the location of a Sharp-tailed Grouse arena
Vol 93, Iss 1, Page 74
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Brewer's Blackbird breeding in the Northwest Territories
Vol 93, Iss 1, Page 76
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A trap to measure Populus and Salix seedfall
Vol 93, Iss 1, Page 77
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Examination of overwintering adult carabid beetles for associated mites
Vol 93, Iss 1, Page 79
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Ring counts in Salix arctica from northern Ellesmere Island
Vol 93, Iss 1, Page 81
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Giant Cow Parsnip (Heracleum mantegazzianum) on Vancouver Island, British Columbia
Vol 93, Iss 1, Page 82
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Nesting of Horned Puffins in British Columbia
Vol 93, Iss 1, Page 84
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A guide to bird finding east of the Mississippi, by Olin Sewall Pettingill, Jr. [Review]
Vol 93, Iss 1, Page 91
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The birds of New Brunswick, by W. Austin Squires [Review]
Vol 93, Iss 1, Page 92
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Mountain monarchs: wild sheep and goats of the Himalaya, by George B. Schaller [Review]
Vol 93, Iss 1, Page 93
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Précis de zoologie: vertebrés. 3: reproduction, biologic, évolution et systématique. Oiseaux et mammifères, par P. P. Grassé [Review]
Vol 93, Iss 1, Page 94
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Ways of the six-footed, by Anna Botsford Comstock [Review]
Vol 93, Iss 1, Page 94
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Birds of southeastern Michigan and southwestern Ontario, by Alice H. Kelley [Review]
Vol 93, Iss 1, Page 95
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Watching sea birds, by Richard Perry [Review]
Vol 93, Iss 1, Page 95
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Bird hazards to aircraft: Problem and prevention of bird /aircraft collision, by Hans Blokpoel [Review]
Vol 93, Iss 1, Page 96
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Bears - their biology and management, eds. M. R. Pelton, J. W. Lentfer, and G. E. Folk [Review]
Vol 93, Iss 1, Page 97
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The earthworms (Lumbricidae and Sparanophilidae) of Ontario, by John W. Reynolds [Review]
Vol 93, Iss 1, Page 98
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The Passenger Pigeon: its natural history and extinction, by A. W. Schorger [Review]
Vol 93, Iss 1, Page 98
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The bird finder's 3-year note book, by Paul S. Eriksson [Review]
Vol 93, Iss 1, Page 99
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The rare vascular plants of Ontario/ Les plantes vasculaires rares de l'Ontario, by George W. Argus and David J. White [Review]
Vol 93, Iss 1, Page 100
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Fungi: delight of curiosity, Harold J. Brodie [Review]
Vol 93, Iss 1, Page 101
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Pollen flora of Argentina: modern spore and pollen types of Pteridophyta, Gymnospermae, and Angiospermae, by Vera Markgraf and Hector L. D'Antoni [Review]
Vol 93, Iss 1, Page 102
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Floristics and environmental planning in western New York and adjacent Ontario: distribution of legally protected plants and plant sanctuaries, by Richard H. Zander [Review]
Vol 93, Iss 1, Page 102
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Atlas of airborne pollen grains and spores in northern Europe, by Siwert Nilsson, Joseph Praglowski, and Lennart Nilsson [Review]
Vol 93, Iss 1, Page 103
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Orchid biology: reviews and perspectives, I., ded Joseph Arditti [Review]
Vol 93, Iss 1, Page 104
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Nature quizzes for Canadians, by V. and B. McMillan [Review]
Vol 93, Iss 1, Page 104
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The Shetland way of oil: reactions of a small community to big business, ed. John Button [Review]
Vol 93, Iss 1, Page 105
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Écologie de la zone de L'aéroport international de Montréal: le cadre d'une recherche écologique interdisciplinaire, par P. Dansereau [Review]
Vol 93, Iss 1, Page 106
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Outdoors Canada: a unique and practical guide to our wilderness and wildlife, ed. Douglas R. Long [Review]
Vol 93, Iss 1, Page 107
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Why big fierce animals are rare: an ecologist's perspective by P. Colinvaux [Review]
Vol 93, Iss 1, Page 108
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Northern vagabond: the life and career of J. B. Tyrrell, by Alex Inglis [Review]
Vol 93, Iss 1, Page 109
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Our responsibilities as field-naturalists and biologists
Vol 93, Iss 2, Page 113
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Natural fires as an index of paleoclimate
Vol 93, Iss 2, Page 116
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Virgin Douglas Fir forest on Saturna Island, British Columbia
Vol 93, Iss 2, Page 126
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Colonial-nesting Herring Gulls and Common Terns in northeastern Saskatchewan
Vol 93, Iss 2, Page 132
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Epiphytes on White Elm, Ulmus americana, near Thunder Bay, Ontario
Vol 93, Iss 2, Page 139
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Habitat utilization and population densities of the amphibians of northeastern Alberta
Vol 93, Iss 2, Page 144
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Caribou distribution and group composition associated with construction of the Trans-Alaska pipeline
Vol 93, Iss 2, Page 155
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Interesting vascular plants from southeastern Yukon Territory
Vol 93, Iss 2, Page 163
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Fall foods of Common Snipe on the Copper River Delta, Alaska
Vol 93, Iss 2, Page 171
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Ivory Gull colonies in southeastern Ellesmere Island, Arctic Canada
Vol 93, Iss 2, Page 173
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Wind-caused death of Great Cormorant
Vol 93, Iss 2, Page 175
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Habitat selection by wintering Snowy Owls (Nyctea scandiaca)
Vol 93, Iss 2, Page 176
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Two-lined Salamander, Eurycea bislineata, in Labrador
Vol 93, Iss 2, Page 178
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First Canadian record of a Flathead Catfish
Vol 93, Iss 2, Page 179
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Earthworm cocoons as a drift component in a southern Ontario stream
Vol 93, Iss 2, Page 180
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Flowering plant phenology at Sheep Mountain, southwest Yukon Territory
Vol 93, Iss 2, Page 183
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Eggshell thickness in American shorebirds before and since DDT
Vol 93, Iss 2, Page 187
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Response of wintering Moose to mechanical habitat rehabilitation in Alaska
Vol 93, Iss 2, Page 191
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New localities for the Northern Spring Salamander and the Four-toed Salamander in southwestern Quebec
Vol 93, Iss 2, Page 193
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First record of the Long-tailed Shrew (Sorex dispar) in New Brunswick
Vol 93, Iss 2, Page 195
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Intraspecific food theft by the American Kestrel
Vol 93, Iss 2, Page 198
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First record of the Northern Brook Lamprey, Icthyomyzon fossor, in the Nelson River drainage, Manitoba
Vol 93, Iss 2, Page 199
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Blue Grouse brood hen - Black Bear confrontation
Vol 93, Iss 2, Page 200
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Where to find birds in British Columbia, by David M. Mark [Review]
Vol 93, Iss 2, Page 203
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The moths of America north of Mexico, including Greenland: Fascicle 22.2, Noctuoidea (in part): Lymantriidae, by D. C. Ferguson [Review]
Vol 93, Iss 2, Page 203
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Hawks, falcons and falconry, by Frank L. Beebe [Review]
Vol 93, Iss 2, Page 205
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Fishes of the world, by J. S. Nelson [Review]
Vol 93, Iss 2, Page 206
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Nesting ecology of Canada Geese in the Hudson Bay Lowlands of Ontario: evolution and population regulation, by Dennis G. Raveling and Harry G. Lumsden [Review]
Vol 93, Iss 2, Page 207
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Birds in boreal Canada, by Anthony J. Erskine [Review]
Vol 93, Iss 2, Page 207
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Lexique anglais-français, Termes techniques à l'Uusage des biologistes, by Jean Vaillancourt [Review]
Vol 93, Iss 2, Page 208
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An introduction to the aquatic insects of North America, eds. R. W. Merritt and K. W. Cummins [Review]
Vol 93, Iss 2, Page 209
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Nichoirs d'oiseaux, par Raymond Cayoutte [Review]
Vol 93, Iss 2, Page 210
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Birds in peril: a guide to the endangered birds of Canada and the United States, by John P. S. Mackenzie [Review]
Vol 93, Iss 2, Page 210
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Manual of the vascular plants of Wyoming, by Robert D. Dorn [Review]
Vol 93, Iss 2, Page 211
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A provisional checklist of species for Flora North America (revised), eds. S. G. Shetler and L. E. Skog [Review]
Vol 93, Iss 2, Page 212
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Garden spice and wild pot-herbs: an American herbal, by W. C. Muenscher and M. A. Rice [Review]
Vol 93, Iss 2, Page 212
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How to identify grasses and grasslike plants (sedges and rushes), by H. D. Harrington [Review]
Vol 93, Iss 2, Page 212
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Flora of Alberta: a checklist, by D. F. Brunton [Review]
Vol 93, Iss 2, Page 213
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Freshwater wetlands: ecological processes and management potential, eds. Ralph E. Good, Dennis F. Wigham, Robert L. Simpson, and Crawford G. Jackson [Review]
Vol 93, Iss 2, Page 213
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Boreal ecology, by William O. Pruitt [Review]
Vol 93, Iss 2, Page 215
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The environmental impact of outdoor recreation, by G. Wall and C. Wright [Review]
Vol 93, Iss 2, Page 215
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L'inventaire for Flora North America (revised), by M. Jurdant, J. L. Bélair, V. Gerardin, and J. P. Ducruc [Review]
Vol 93, Iss 2, Page 216
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Applications de la télédétection à l'Éetude de la biosphère, by C. M. and M. C. Girard [Review]
Vol 93, Iss 2, Page 217
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Wildness is all around us: notes of an urban naturalist, by Eugene Kinkead [Review]
Vol 93, Iss 2, Page 217
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Field photography: beginning and advanced techniques, by Alfred A. Blaker [Review]
Vol 93, Iss 2, Page 218
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Editorial: To a Bigot
Vol 93, Iss 3, Page 231
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Seasonal growth, food and feeding habits of young-of-the-year Black Crappie in the Ottawa River
Vol 93, Iss 3, Page 232
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Nesting and food-storage behavior of Peromyscus maniculatus gracilis and P. leucopus noveboracensis
Vol 93, Iss 3, Page 239
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Life history characteristics of Little Brown Bats (Myotis lucifugus) in Alberta
Vol 93, Iss 3, Page 243
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Winter denning of the Striped Skunk in Alberta
Vol 93, Iss 3, Page 252
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Range extensions of vascular plants in northern Yukon Territory and northwestern District of Mackenzie
Vol 93, Iss 3, Page 259
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Food and feeding of the Rainbow Smelt (Osmerus mordax) in Lake Simcoe, Ontario
Vol 93, Iss 3, Page 266
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Song pattern of the Cypress Hills population of White-crowned Sparrows
Vol 93, Iss 3, Page 272
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Nesting biology and development of young in Ontario Black Terns
Vol 93, Iss 3, Page 276
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Summer, autumn, and winter diets of Elk in Saskatchewan
Vol 93, Iss 3, Page 282
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Taxonomy, distribution, and ecology of the cliff-brake ferns (Pellaea: Polypodiaceae) in Alberta
Vol 93, Iss 3, Page 288
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Characteristics of Peregrine Falcons migrating through central Alberta, 1969-1978
Vol 93, Iss 3, Page 296
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Extralimital record of a Narwhal (Monodon monoceros) in Hall's Bay, Newfoundland
Vol 93, Iss 3, Page 303
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First Canadian record of the Black Buffalo (Osteichthyes: Catostomidae)
Vol 93, Iss 3, Page 304
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Thaspium trifoliatum (Meadow-parsnip) in Canada
Vol 93, Iss 3, Page 306
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Largest Gray Wolf skulls found in Alberta
Vol 93, Iss 3, Page 308
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Aquatic feeding by a Woodchuck
Vol 93, Iss 3, Page 309
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Dispersion of freshwater leeches (Hirudinoidea) to Anticosti Island, Quebec
Vol 93, Iss 3, Page 310
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Relative efficiencies of Museum Special, Victor, and Holdfast traps for sampling small mammal populations
Vol 93, Iss 3, Page 313
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Probable hybrids of Cinnamon X Blue-winged Teal from southern Alberta
Vol 93, Iss 3, Page 316
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Common Garter Snake predation on Ring-billed Gull chicks
Vol 93, Iss 3, Page 317
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The Rock Vole (Microtus chrotorrhinus) as a Transition Zone species
Vol 93, Iss 3, Page 319
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Eastern limit of the Five-lined Skink, Eumeces fasciatus, in Ontario
Vol 93, Iss 3, Page 321
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Barn Owls in Quebec
Vol 93, Iss 3, Page 323
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Communal roosting of Song Sparrows under snowbank
Vol 93, Iss 3, Page 325
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Status of Eastern White Cedar, Thuja occidentalis in western Nova Scotia
Vol 93, Iss 3, Page 326
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Snowy Egret in the Northwest Territories
Vol 93, Iss 3, Page 329
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Tribute to Hoyes Lloyd, 1888-1978 [Obituary]
Vol 93, Iss 3, Page 331
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Animals in peril: a guide to the endangered species of Canada and the United States, by D. C. Grainger [Review]
Vol 93, Iss 3, Page 339
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The great arc of the wild sheep, by James I. Clark [Review]
Vol 93, Iss 3, Page 339
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A guide to the birds of Venezuela, by Rodolphe Meyer de Schaunsee and William H. Phelps, Jr. [Review]
Vol 93, Iss 3, Page 340
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North American Moose, by M. A. Ogilvie [Review]
Vol 93, Iss 3, Page 341
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Wild geese, by M A. Ogilvie [Review]
Vol 93, Iss 3, Page 341
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Crows of the world, by Derek Goodwin [Review]
Vol 93, Iss 3, Page 342
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Life of the Harp Seal, by Fred Bruemmer [Review]
Vol 93, Iss 3, Page 342
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Edible garden weeds of Canada, by A. F. Szczawinski and N. J. Turner [Review]
Vol 93, Iss 3, Page 344
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Ferns of the Ottawa district, by William J. Cody [Review]
Vol 93, Iss 3, Page 345
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Dyes from lichens and plants: a Canadian dyer's guide, by Judith Waldner McGrath [Review]
Vol 93, Iss 3, Page 346
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Human activity and the Environment, by Statistics Canada [Review]
Vol 93, Iss 3, Page 347
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Vermillion Lakes Banff National Park: an introductory study, by the Bow Valley Naturalists [Review]
Vol 93, Iss 3, Page 347
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Weather almanac, eds J. A. Ruffner and F. E. Bair [Review]
Vol 93, Iss 3, Page 347
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Introduction to mathematics for life scientists, by E. Batschelet [Review]
Vol 93, Iss 3, Page 348
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Some new and interesting vascular plant records from northern Ontario
Vol 93, Iss 4, Page 355
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Yearly variations in the population dynamics of Richardson's Ground Squirrels
Vol 93, Iss 4, Page 363
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Man's influence on potential nesting sites and populations of swallows in Canada
Vol 93, Iss 4, Page 371
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Distribution and habitats of four annual smartweeds in Ontario
Vol 93, Iss 4, Page 378
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Apparent differences in aquatic macrophyte floras of eight lakes in Muskoka District, Ontario from 1953 to 1977
Vol 93, Iss 4, Page 386
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Utricularia geminiscapa at Mer Bleue and range extensions in eastern Canada
Vol 93, Iss 4, Page 391
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Movements of sympatric species of snakes at Amherstburg, Ontario
Vol 93, Iss 4, Page 399
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Winter feeding by Porcupines in montane forests of southwestern Alberta
Vol 93, Iss 4, Page 405
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Interactions between Snowy and Short-eared Owls in winter
Vol 93, Iss 4, Page 411
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The Biological Flora of Canada. 1. Vaccinium angustifolium Ait., Sweet Lowbush Blueberry
Vol 93, Iss 4, Page 415
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Mosses new to Ontario and Quebec
Vol 93, Iss 4, Page 431
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Swans wintering on Vancouver Island, 1977-1978
Vol 93, Iss 4, Page 433
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Interspecific vocal mimicry by Pine Grosbeaks
Vol 93, Iss 4, Page 436
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Influence of weather on aggression in Tree Swallows
Vol 93, Iss 4, Page 437
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Abandoned windmill used as a nesting site by Great Blue Herons
Vol 93, Iss 4, Page 439
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Unusually late pregnancy of a Muskrat in southeastern New Brunswick
Vol 93, Iss 4, Page 440
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Lynx movements and habitat use in Montana
Vol 93, Iss 4, Page 441
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Decline of summering Bald Eagles in central New Brunswick
Vol 93, Iss 4, Page 443
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Lesser Black-backed Gull, Larus fuscus. in Labrador waters
Vol 93, Iss 4, Page 445
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Occurrence of the Red Phalarope in the Canadian prairie provinces and adjacent states
Vol 93, Iss 4, Page 446
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Nesting of the Calliope Hummingbird in Kananaskis Provincial Park, Alberta
Vol 93, Iss 4, Page 449
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Guide to the study of animal populations, by James T. Tanner [Review]
Vol 93, Iss 4, Page 453
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Quaternary vertebrate faunas of Canada and Alaska and their suggested chronological sequence, by C. R. Harrington [Review]
Vol 93, Iss 4, Page 453
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Birds of Man's world, by Derek Goodwin [Review]
Vol 93, Iss 4, Page 454
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Statistical inference from band recovery data: a handbook, by C. Brownie, D. R. Anderson, K. P. Burnham, and D. S. Robson [Review]
Vol 93, Iss 4, Page 455
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The Gannet, by Bryan Nelson [Review]
Vol 93, Iss 4, Page 456
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Vascular plant families, by James Payne Smith, Jr. [Review]
Vol 93, Iss 4, Page 457
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An atlas of airborne pollen grains and common spores of Canada, I. John Bassett, Clifford W. Crompton, and John A. Parmelee [Review]
Vol 93, Iss 4, Page 457
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A vanished world: the dinosaurs of western Canada, by Dale A. Russell [Review]
Vol 93, Iss 4, Page 458
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Biogeography and ecology of southern Africa, ed. M. J. A. Werger [Review]
Vol 93, Iss 4, Page 459
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The ecology of North America, by V. E. Shelford [Review]
Vol 93, Iss 4, Page 460
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Chlorinated phenoxy acids and their dioxins, ed. C. Ramel [Review]
Vol 93, Iss 4, Page 460
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Last of the naturalists: the career of C. Hart Merriam, by Keir B. Sterline [Review]
Vol 93, Iss 4, Page 461
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Le Naturaliste Canadien, Index, by G.-W. Corrivault and P. Morisset [Review]
Vol 93, Iss 4, Page 462