Skip to main content

Phenology Tool

Phenology Graph Image

This interactive mapping tool generates a graph that provides our best understanding of when birds are most likely to be present in a selected area. The graph includes information about presence, abundance, and effort

  • Presence – Each light blue bar represents a bird’s relative probability of presence during a particular week of the year; a taller bar indicates a higher relative probability of species presence.
  • Abundance – Each light green bar represents the bird’s abundance score during a particular week of the; a taller bar represents a higher abundance score.
  • Effort – Vertical dark blue lines superimposed on presence and abundance bars indicate the number of surveys performed in the area.

Click here to access the tool.

To learn more about how your species list and the associated graphs are generated and how to properly interpret your report see About Your Species Report.

Click here to see our Phenology Tool video tutorial.