Jacobsburg State Park ~ May 7, 2025

This morning's walk at Jacobsburg State Park was a little disappointing due to a lack of migrants. The 2 Swainson's Thrushes and several White-throated Sparrows were the only migrants of the day. Like a few times before, I found them feeding way up in the top two-thirds of the taller trees like the warblers normally do.

Swainson's Thrush

I still ended up with 48 species. Other notables included Common Merganser, Osprey, Broad-winged Hawk, Eastern Phoebe, Great Crested Flycatcher, Eastern Kingbird, Common Raven, Tree, Barn, and Northern Rough-winged Swallow, Blue-gray Gnatcatcher, Northern House Wren, Brown Thrasher, Wood Thrush, American Goldfinch, Field Sparrow, Eastern Towhee, Baltimore Oriole, Ovenbird, Louisiana Waterthrush, Black-throated Blue and Black-and-white Warbler, Common Yellowthroat, Scarlet Tanager, and Indigo Bunting.

Common Mergansers

Osprey

Baltimore Orioles

As I was walking along the trail on the other side of the road from the Henry's Woods parking lot, I heard the song of a Golden-winged Warbler! It was singing in an area of thick brush. After some searching, I finally got eyes on it, but I was disppointed when it appeared to be a Blue-winged Warbler instead. I took a bunch of photos of it. When I got home and processed them, I found a hint of yellow in the wingbars, which means there was indeed a hint of hybridization with a Golden-winged.

A Blue-winged Warbler with some yellow in the wingbars suggesting some hybridization with a Golden-winged Warbler.

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