About Your Trip Leader

Meet Mary Keithler

Mary Keithler

I took the Audubon Beginning Birding class with the Kingery’s in 2005 and have been birding ever since. I graduated from the second Audubon Master Birder class in February of 2009. Shortly after that I began leading bird walks for DFO and Denver Audubon. I always enjoy seeing American dippers, warblers, and Cedar waxwings.

I like leading local trips with a hike of 1 to 3 miles. I like to share information on bird sounds as well as bird behavior and identification tips with the group. I took Denver Audubon’s Master Birder program about 15 years ago and led monthly trips to Denver parks for about 10 years from 2010 until 2020. I occasionally lead trips to Cherry Creek State Park for DFO, parts of which I bird several times almost every week.


Meet Jill Holden