A PDF field guide to the species reported in and around Herrington Manor State Park, with common and scientific names and up to 3 photos of each, laid out for use in the field and offline.
The animals people report most often in and around Herrington Manor State Park include White Spot, Mint-Loving Pyrausta Moth, Baltimore Snout, Peppered Moth and Pale Beauty. Insects lead the list with 45 species.
The 20 species reported most often here, of 50 in the full guide.

White Spot

Mint-Loving Pyrausta Moth

Baltimore Snout

Peppered Moth
Pale Beauty

Slowpoke Moth
Tell me what you're looking for, and I'll do my best to answer.
Eastern Phoebe
Two-Spotted Tree Cricket
Black-Ended Bear

Hickory Tussock Moth
Sharp-Angled Carpet

Pale Homochlodes
Horned Spanworm Moth

Double-Striped Scoparia Moth
Large Yellow Underwing

Dotted Sallow
Furrow Orbweaver
Sunfish
Tell me what you're looking for, and I'll do my best to answer.
Variable Fan-Foot
Widow Skimmer