Journey into the Heart of Nicaragua: Parque Nacional Saslaya
In northeastern Nicaragua there is a rainforest-clad mountain that has seldom been visited by scientists, or anyone for that matter. […]
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 […]
Some things that are done impulsively, and perhaps recklessly when considered afterward, make for the best memories. I don’t know if I would […]
A ride on the bus with Captain Clearlight (1930–2013), self-proclaimed ‘King of LSD’
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 […]