In October 1765, pioneer American naturalists John Bartram (1699–1777) and his son William Bartram (1729–1833) discovered a curious plant growing […]
Archive for ‘Philadelphia’
Inside a nest of the Bald-faced Hornet (Dolichovespula maculata)
A colony of Bald-faced Hornets (Dolichovespula maculata) has recently taken up residence on the side of the Wyck House. I […]
A closer look at the wing of Swainson’s Thrush (Catharus ustulatus swainsoni) in First Basic plumage
Like other migratory Catharus species, juvenile Swainson’s Thrushes (Catharus ustulatus swainsoni) molt into a ‘First Basic’ plumage at the end of their […]
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 […]
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 […]