David Larson leads natural history trips and tours for Mass Audubon.
Local and North American trips are usually sponsored by the Joppa Flats
Education Center
in Newburyport, Massachusetts, while international trips
are sponsored by Mass Audubon Tours out of Lincoln, Massachusetts.

Botswana Birding Safari Photos from a fabulous trip (March 11-22, 2008)
Brazil: Birding the Atlantic Coastal Range Photos - great birds, great time! (July 13-26, 2008)
Bosque del Apache and the Rio Grande Corridor  Photos from January 12-18, 2009
Leaders' Choice A few photos from February 26-27, 2009
Birding the South Carolina Coastal Lowlands A wonderful trip on April 20-26, 2009! We will be doing it again in April 2010.
Costa Rica Birding Adventure July 2009 - See my photo pages.
Olympic Peninsula of Washington September 2009 - see the photos. We will run it again in 2010.
Brazil: The Atlantic Rainforest, the Pantanal, and Chapada dos Guimaraes October 2009 as a replacement for another leader. We had a great trip, with 414 species of birds, 17 species of mammals including jaguar. See the photos!
Optimal Belize Birding Adventure We had a great trip from February 27 - March 7, 2010!
Birding the South Carolina Coastal Lowlands Another super excursion to the land of Red-cockaded Woodpeckers, Swainson's Warblers, and fried pickles on April 20 - 25, 2010
Back to Machias Seal Island and Downeast Maine June 19-21, 2010 - over 20 years running!
The Olympic Peninsula of Washington September 9-16, 2010 - see photos (above) from our trip last year!

more to come!
 
   Updated 5/9/2010