The presence or absence of a feeder bird species is recorded for each FeederWatch site. Distribution maps have a dot at each site where a particular species is seen. Another way to look at distributions is using the percentage of feeders visited . Percentage of feeders visited is also an indication of feeder bird abundance . A list of the ten birds most often seen by FeederWatchers in your region.
Trends are evident with only ten years of data.
Articles explaining these findings are listed here with links to online versions of each article. FeederWatchers help track these movements.