April 28, 2020

Shortly after an intro meeting for students on the practice of observing without and pre-conceived vision or plan, I drove out to Gladwyne to River Rd., parked near the Flat Rock Dam and walked to the fish ladder. Some field notes, photos and observations just below:

Wild plant #1 – Artemisia annua, [ASTERACEAE] “Sweet wormwood”

Wild plant #2, Geranium molle [GERANIACEAE] “Dovefoot Geranium”

Wild plant #3, Lamium purpureum, [LAMIACEAE] “Purple deadnettle”

Short Video of singing Vesper Sparrow on signpost, mp3 and sonogram below.

Audio file excerpt with song from the dam (you hear the rushing water in the background)

Visual Sonogram converted from above audio file, and online sonogram from xeno-canto.org below