Likely Bald Eagle; also called American Eagle. Identification is tentative from this single feather.

The pictured feather has a striking dark cap-like tip, pale shaft, and white fluffy base. Bald Eagles are large fish-eating raptors with white heads and tails as adults; this specimen is not enough to confirm the species.

Mostly white to cream with a large dark brown-black terminal area and a narrow pale mark across it. This resembles an adult Bald Eagle pattern, though the image alone cannot establish species or age.

Pennaceous vanes over the dark upper portion, transitioning to loose, plumulaceous down near the base; barbs appear largely intact.

Prominent pale yellow-ivory rachis; barbs are dense and aligned in the dark vane, then become sparse and fluffy toward the base.

Smooth, compact upper vane contrasts with a soft, loose downy lower portion; no obvious oil or surface debris.

Probably body or wing-coverts rather than a primary or tail feather, based on its broad shape and downy base.

Contrasting dark terminal vane and pale base, broad outline, and conspicuous light rachis; these traits are suggestive, not diagnostic.

Bald Eagles occupy shores, lakes, rivers, wetlands, and other areas with large trees or cliffs for nesting and nearby fish or waterbird prey.

Found across much of North America, from Alaska and Canada through the contiguous United States; many northern birds migrate south in winter.

Bald Eagles are top predators and scavengers, especially associated with aquatic food webs; they can reflect ecosystem health. Populations recovered substantially after pesticide-related declines, though habitat loss and contaminants remain concerns.

Other large raptors, including Golden Eagles and vultures, can have dark-and-pale feathers. Feather tract, exact pattern, measurements, and locality are needed to distinguish them reliably.

Bald Eagles build some of the largest nests recorded for any bird and often reuse and enlarge them over many years.

Eagle feathers have profound significance in many Indigenous traditions. In the United States, possession and use are regulated; do not collect or keep a wild eagle feather without applicable legal authorization.

Photograph both sides beside a ruler and record where it was found; compare with verified regional feather references. Do not take feathers from nests or handle suspected eagle feathers unnecessarily.

Appears generally intact and clean, with naturally loose basal down; no clear breakage or severe wear is visible. Condition: Good.