Cover
Front matter OB Vol4#3 Dec1986
Ontario Birds
Back matter OB Vol4#3 Dec1986
Ontario Birds
Contents
Some Aspects of Bird Migration at Caribou Island (Lake Superior), Ontario
Alan Wormington, J. Robert Nisbet, and Robert G. Finlayson
Thunder Bay's Nesting Merlins
N. G. Escott
Are Red-eyed and Philadelphia Vireos Always Interspecifically Territorial?
Ross D. James and Mark K. Peck
Fall Vagrancy of the Indigo Bunting in Northern Ontario
Alan Wormington
A Phenology of Ring-billed Gull Activities in Thunder Bay District
Vicky H. Johnston