The butterflies with a wingspan of about half an inch love the glasswort and purslane along the road near the pavilion on the hill.
During that Saturday afternoon 146 were recorded for the count.
Here's a list of the butterflies submitted to the North America Butterfly Association.
Pipevine Swallowtail 3, Giant Sw. 1, Spicebush Sw. 5, Cloudless Sulphur 2, Little Yellow 25, Dainty Su. 7, Gray Hairstreak 5, Red-banded Ha. 2, 1W. Pygmy-Blue 146, Ceraunus Bl. 1, Gulf Fritillary 25, Phaon Crescent 4, Pearl Cr. 1, Question Mark 1, Red Admiral 1, Com. Buckeye 26, Goatweed Leafwing 1, Tawny Emperor 3, Monarch 4, White-striped Longtail 3, Horace's Duskywing 1, Com. Checkered-Skipper 9, Tropical Checkered-Sk. 8, Clouded Sk. 7, S. Skipperling 7, Fiery Sk. 8, Whirlabout 1, Dun Sk. 1, Salt Marsh Sk. 1, Obscure Sk. 1. Total 30 species, 310 individuals. Immatures: Giant Sw. 1 egg on Myer Lemon Tree; Gulf Fr. 27 eggs 39 caterpillars 2 pupas on Purple Passion Vine ; Monarch 5 caterpillars on Mexican Milkweed. Field Notes: 1The numbers of Western Pygmy-Blues in the saltmarshes of the Baytown Nature Center is a sight to behold!