Cover
Front matter OB Vol 17#1 Apr1999
Ontario Birds
Book Review
Contents
Taxonomic History of Thayer's Gull
Ron Pittaway
Yellow-throated and Blue-headed Vireos in Ontario: 5 Nestling Period, and Post-nesting Activities
Ross D. James
Sharp-shinned Hawk - Eastern Kingbird Interaction
Ross D. James
A Birder's Guide to Southern James Bay, Including Moosonee and Moose Factory
Stephen J. Scholten
Photo Quiz
Photo Quiz
Ron Pittaway