Few figures in 20th century ornithology stand out like Erwin Friedrich Theodor Stresemann (1889–1972), the famed German ornithologist who authored […]


Few figures in 20th century ornithology stand out like Erwin Friedrich Theodor Stresemann (1889–1972), the famed German ornithologist who authored […]

“There is also another unmeaning custom, which it is still more essential for us to get rid of. I mean […]

In a new paper in the Proc. Acad. Nat. Sci. Phila. (download here), I expose a big misunderstanding about the […]

Philadelphia City officials have broken ground on a new development project in East Fairmount Park, to transform the meadow at […]

Black-throated Blue Warbler Setophaga caerulescens (hereafter BTBW) is a sexually dimorphic species in the songbird family Parulidae that has been […]

The longest and most profitable expedition (in new species, if not subscribers) of Alexander Wilson (1766–1813), the Scottish-born poet and […]

“It would be preferable to give names descriptive of the subjects – But the most ridiculous and absurd, is that […]

I celebrate a personal holiday on November 9 — Baculites Day— the anniversary of my serendipitous (re)discovery of a very […]

Today’s episode in the history of American science takes a closer look at Richard Harlan (1796–1843), namesake of Harlan’s Hawk […]

A few years ago, I read an article by Rico-Guevara and Rubega (2011) that described the tongue of the hummingbird […]