My final summary report on the groupings of organisms and the people who found them during Walden Biodiversity Days in 2009 and 1998 is finished and can be downloaded here (5.7 MB). These events wouldn’t have been possible without hundreds of experts and helpers...
Sometimes you’ve got to roll up your sleeves – or pants leg – to get the job done, as I was doing to identify leeches in the Concord woods during Walden Biodiversity Day, a 24-hour bio-blitz to inventory all species that can be seen with the naked...
On July 3rd and 4th I’ll be leading the second Walden Biodiversity Day, a gathering of top naturalists and field biologists — many of whom participated in the first Biodiversity Day in 1998 — who will fan out to find, identify and photograph over a thousand...
As reported by the Wall Street Journal: a tiny blackbird has been tormenting pedestrians in the heart of San Francisco’s financial district, guarding his nest in a behavior called “mobbing.” But has this bird gone bad or is he just getting back at...
This October I’m leading a trip to the Galapogos for Road Scholar, with several more departures planned for next April and May. There’s no doubt the Galapagos Islands provide one of the most thrilling wildlife experiences in the world. Without natural...
