1989 Personnel

Director's Report for 1989
Gordon G. C. Robinson

Manager's Report for 1989
Russell G. Mead

1989 Weather summary
L. Gordon Goldsborough, Department of Botany, Brandon University and Gordon G. C. Robinson, Department of Botany, University of Manitoba

Is decreasing egg size a brood-reduction strategy: evidence from the Yellow-headed Blackbird
Colleen A. Barber, Department of Zoology, University of Manitoba

Defenses against brood parasitism by Eastern Kingbirds (Tyrannus tyrannus)
R.C. Bazin, Department of Zoology, University of Manitoba

The onset of incubation in Yellow Warblers
Percy N. Hébert, Department of Zoology, University of Manitoba

Reproduction and growth in hoary bats (Lasiurus cinereus)
Catherine E. Koehler, Department of Biological Sciences, University of Calgary

The effect of water turbulence on the limnology of a prairie wetland: a study utilizing enclosures
Brian G. Kotak, Department of Botany, University of Manitoba

Nest defense in four host species of the Brown-headed Cowbird
Diane L. Neudorf, Department of Zoology, University of Manitoba

The establishment of permanent monitoring and experimental sites at the University Field Station (Delta Marsh)
Gordon G.C. Robinson, Department of Botany, University of Manitoba, and Cheryl Crane, Department of Geography, University of Manitoba

Effects of nestling age and vocal playbacks on the nestling feeding behaviour of adult Barn Swallows (Hirundo rustica)
Douglas Torrance, Department of Zoology, University of Manitoba

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