Monitoring Avian Productivity and Survivorship (MAPS) is a
cooperative effort among public agencies, private organizations,
and the bird banders of the continental United States and Canada
to provide critical, long-term data on population and
demographic parameters for many landbird species. The major
objective of the MAPS program is to contribute to an integrated
avian population monitoring system (Institute of Bird
Populations) for North American landbird species by providing
annual regional indices and estimates for four populations and
demographic parameters: Adult population size, post-fledging
productivity, adult survivorship, and recruitment into the adult
population. The standardized year-to-year commitment of the
study is at least five, preferably ten consecutive years. It is
necessary for each station to provide reliable estimates of
annual variations in productivity and survivorship (DeSante
2000). The three main habitat species describing the CLDC (MAPS)
station include Arrowwood (Viburnum recogni