D.M. Finch P.W. Stangel Sam Droege 1993 Relevant wildlife monitoring on managed lands lies somewhere between monitoring everything and monitoring nothing. Knowing the population status of all birds on a managed area would be potentially useful information but would be costly to collect, but without monitoring no link between management and wildlife populations can be made. A decision making process for developing appropriate monitoring programs on managed lands is outlined. application/pdf en U.S. Forest Service, Rocky Mountain Forest and Range Experiment Station Monitoring neotropical migrants on managed land: When, where, why chapter