In late August 2006, having just completed a long field season of bird research in the high desert of Nevada, I […]
Smooth-billed Ani — in Philadelphia!
Like most birders, Philadelphians get excited about a rare bird. With over 250 years of bird records from Philadelphia, the […]
1831: The Academy gets tax-exempt status!
The first 20 years of the Academy of Natural Sciences of Philadelphia were an uncertain time, and had it not […]
Audubon and the Academy of Natural Sciences: It’s complicated.
In the halls of the Academy of Natural Sciences of Drexel University you will occasionally hear it mentioned, in a […]
“Winter” specimens of Swainson’s Thrush in eastern North America
I came across a specimen of Swainson’s Thrush (Catharus ustulatus swainsoni) in the ornithology collection of the Academy of Natural […]
Witmer Stone was born 150 years ago today.
If you watch birds in southeast Pennsylvania or New Jersey, chances are you have heard of Witmer Stone (1866–1939), naturalist, historian of […]
Genetic sampling of Townsend’s 1835 type specimens of Catharus
In 1834, pioneer naturalists Thomas Nuttall (1786–1859) and John Kirk Townsend (1809–51) ventured westward with the second expedition of Nathaniel […]