Barred Owl Habitat Use as Determined by Radiotelemetry

Radio transmitt ers were successfu lly placed on 10 barred owls (Strix varia) during 59.65-66 and the movemen ts of the owls were followed with an automatic radio-tra cking system for a total of 1,182 days.More than 28,000 owl locations were sampled from some two million locations recorded.These locations , along with habitat availabil ity informati on, were programme d for computer analysis to determine intensity of habitat use.Barred owls showed consisten t and highly significa nt preferenc e or avoidance for different habitats despite changing seasons, phenology , weather condition s, and years.The order of habitat preferenc e in decreasin g intensity of use was oak (Quercus spp.) woods, mixed hardwoods and conifers, white-ced ar .' (Thula occidenta lis) swamps, oak-savan nas, alder (Alnus spp.) ..amps , 4marshes, and open fields.