Bird Treemap

Here is a treemap of unduplicated counts (rounded up) by family, June 2013 - May 2014. The size of the box represent the number of individuals and the color represents the best time to view.  It may take a moment to load. While hovering your mouse, the arrow on the scale at top right gives a rough idea of when a selection is likely to be seen.

Click on a blue header to drill down.   Right click to drill up.