This was posted on Princeton University Press's website recenty. View the post here: http://blog.press.pr...-warbler-guide/
We’ve now given away close to 60,000 free downloads of the Quick Finders from The Warbler Guide by Tom Stephenson and Scott Whittle. Last fall we surprised everyone with a sheet with advice on aging and sexing Eastern Fall warblers. This year, we are delighted to present Tom and Scott’s tips on identifying, aging and sexing Western Fall warblers.
Make the most out of the remaining weeks of fall birding by downloading this free tip sheet today.
Simply click the image or PDF link below and download to your device or computer.
Aging and Sexing Warbler Tip Sheet, credit: Tom Stephenson and Scott Whittle, authors of The Warbler Guide.
Click here to view PDF [right click and save if you wish]