Articles
Time-activity budget for Common Loons, Gavia immer, nesting on Lake Superior — THEODORE J. GOSTOMSKI and DAVID C. EVERS	191
Response of a forest raptor community to broadcasts of heterospecific and conspecific calls during the breeding season — THOMAS BOSAKOWSKI and DWIGHT G. SMITH	198
Lead poisoning of Trumpeter Swans, Cygnus buccinator, in British Columbia, 1976-1994 — LAURIE K. WILSON, JOHN E. ELLIOTT, KEN M. LANGELIER, ANTON M. SCHEUHAMMER, and VICTORIA BOWES	204
Reproductive effort and survival of wild Blue-winged Teal, Anas discors, with backpack harness and implant transmitters — PAMELA R. GARRETTSON and FRANK C. ROHWER	212
Range extension and new locality records for the Stonecat, Noturus flavus, in Manitoba: Evidence for a recent natural invasion — BRUCE R. McCULLOCH and KENNETH W. STEWART	217
Inspection of snakes by White-breasted, Sitta carolinensis, and Pygmy, Sitta pygmaea, nuthatches — J.E. BRYAN	225
Occurrence and abundance of chiggers (Acari: Trombiculidae) on bats (Chiroptera: Vespertilionidae) in eastern Ontario — JASON JONES	230
Fire temperatures in plant communities of the northern mixed prairie — O.W. ARCHIBOLD, L.J. NELSON, E.A. RIPLEY, and L. DELANOY	234
Observations of fish mortality associated with ice blasting on the lower Rideau River, Ottawa, Ontario — PAUL R.H. SCHAAP, CRAIG J. THOMAS, and BRUCE A. REID	241
Reproductive biology of the Northern Madtom, Noturus stigmosus (Acinopterygii: Ictaluridae) in Lake St. Clair, Ontario — ANDREW J. MacINNIS	245
Distribution of larval colonies of Lophocampa argentata Packard, the Silver Spotted Tiger Moth (Lepidoptera: Arctiidae) in an old-growth Douglas-fir, Pseudotsuga menziesii / Western Hemlock, Tsuga heterophylla, forest canopy, Cascade Mountains, Washington State — DAVID C. SHAW	250
White-tailed Deer, Odocoileus virginianus, capture techniques in yarding and non-yarding populations in New Brunswick — WARREN B. BALLARD, HEATHER A. WHITLAW, DWAYNE L. SABINE, ROGER A. JENKINS, STEVEN J. YOUNG, and GRAHAM F. FORBES	254
Summer diet of Gray Wolves, Canis lupus, in northwestern Alaska — R.L. SPAULDING, PAUL R. KRAUSMAN, and WARREN B. BALLARD	262
Habitat de reproduction et succès de nidification d'une population introduite de Tétras du Canada, Falcipennis canadensis, dans l'Ile d'Anticosti, Québec — YVES LEMAY, JEAN FERRON, JEAN-PIERRE OUELLET, et RICHARD COUTURE	267
New or rediscovered native vascular plant species in British Columbia — GEORGE W. DOUGLAS, FRANK LOMER, and HANS L. ROEMER	276
Status of Water-plantain Buttercup, Ranunculus alismifolius var. alismifolius (Ranunculaceae) in Canada — GEORGE W. DOUGLAS and JEANNE M. ILLINGWORTH	280
Status of Coastal Wood Fern, Dryopteris arguta (Dryopteridaceae) in Canada — JUDY A. JAMISON and GEORGE W. DOUGLAS	284
New records of vascular plants in the Yukon Territory — WILLIAM J. CODY, CATHERINE E. KENNEDY, and BRUCE BENNETT	289
Notes
Distribution of the Wood Frog, Rana sylvatica, in Labrador: An update — TONY E. CHUBBS and FRANK R. PHILLIPS	329
An extension of the known range of the Long-toed Salamander, Ambystoma macrodactylum, in Alberta — ROBIN WALSH	331
Attempted predation on a Snowshoe Hare, Lepus americanus, by an American Marten, Martes americana, and a Northern Raven, Corvus corax — ROBERT D. OTTO	333
Increase in populations of Henry's Elfin, Callophys henrici (Lepidoptera, Lycaenidae), in Ottawa-Carleton, Ontario, associated with man-made habitats and Glossy Buckthorn, Rhamnus frangula, thickets — P.M. CATLING, R.A. LAYBERRY, J.P. CROLLA, and P.W. HALL	335
Additions à la flore native de Saint-Pierre et Miquelon — ROGER ETCHEBERRY	337
Low Cooper's Hawk, Accipiter cooperii, nest in dense shrubs — MARRIAH L. SONDREAL and ROBERT K. MURPHY	339
Tolerance by denning Wolves, Canis lupus, to human disturbance — RICHARD P. THIEL, SAMUEL MERRILL, and L. DAVID MECH	340
Unusual eye vibrissae on a White-tailed Deer, Odocoileus virginianus, and other pelage anomalies from Upper Michigan — DONALD L. SEYMOUR and TIMOTHY R. VAM DEELEN	343
An albino Snapping Turtle, Chelydra serpentina, from Québec — RAYMOND A. SAUMURE and DAVID RODRIGUE	344
Identification of Northern Pocket Gopher, Thomomys talpoides, remains in Long-tailed Weasel, Mustela frenata longicauda, scats — GILBERT PROULX and PAMELA J. COLE	345
Moulting sites of sea ducks and other marine birds in Frederick Sound, southeast Alaska — ROBERT W. BUTLER	346
Observations on quantitative cognition in Southern Flying Squirrels, Glaucomys volans — JAMES F. TAULMAN	347
News and Comment
Notices: 120th Annual Meeting of the Ottawa Field-Natualists' Club — Erratum: The Canadian Field-Naturalist 111(4) — Erratum: The Canadian Field-Naturalist 112(1) — Sea Wind: Bulletin of Ocean Voice International — Froglog: Newsletter of the Declining Amphibian Populations Task Force (DAPTF) — Canadian Association of Herpetologists Bulletin — Rana-Saura: Amphibian population monitoring program; Atlas of amphibians and reptiles of Quebec — Global Biodiversity: Canadian Museum of Nature Volume 7, Number 3, Winter 1997 and Volume 7, Number 4, Spring 1998 — Ontario Natural Heritage Information Centre Newsletter — Eighteen Years of CWS Publication on Acid Rain and Wildlife — Recovery: An Endangered Species Newsletter: Winter 1997 — CITES Control List Number 12 — Wildlife as Indicators of Forest Sustainability — Wild Animal and Plant Protection and Regulation of International and Interprovincial Trade ACT: 1996 Report — the Ontario chorus — The Boreal Dipnet: Newsletter of the Canadian Amphibian and Reptile Conservation Network	350
Editor's Report for The Canadian Field-Naturalist Volume 111 (1997) — FRANCIS R. COOK	354
A tribute to William George Dore, 1912-1996 — STEPHEN J. DARBYSHIRE	357
Proposal to establish a chair in the Natural History of the Boreal Forest at the University of Manitoba — WILLIAM O. PRUITT, JR.	366
Book Reviews
Zoology: The Ecology, Status, and Conservation of Marine and Shoreline Birds of the Queen Charlotte Islands — King and Common Eiders of the Western Canadian Arctic — A Natural History of Amphibians — A Birdwatching Guide to Southern Spain — Cranes: Their Biology, Husbandry, and Conservation — The Hummingbirds of North America — The Galápagos Tortoises: Nomenclatural and Survival Status	373
Environment: People and Environment — Deeper Ecology: Essays on Ecological Spirituality — The Abstract Wild — The Work of Nature: How the Diversity of Life Sustains us — Small Islands, Big Issues: Sustainable Development of Islands — Food Web of a Tropical Rain Forest — The Marshes of Southwestern Lake Erie	379
Miscellaneous: Privileged Hands, A Scientific Life	384
New Titles	384
	386
Mailing date: 17 July 1998

ISSN: 0008-3550