Blue-and-yellow Macaw, also known as the Blue-and-gold Macaw

These feathers are iconic for their brilliant turquoise-blue hue. The Blue-and-yellow Macaw is a massive parrot reaching 3 feet in length, featuring a white face patch, black chin, and gold underparts. Its flight is powerful and direct, marked by loud, raucous screaming calls.

Vibrant cerulean blue on the dorsal (upper) surface. The ventral (underside) is typically a rich golden-yellow or olive-yellow, though not clearly visible here. Solid color with no banding.

Pennaceous; tightly interlocked barbs with well-developed barbules and hooklets ensuring a wind-resistant surface for flight. Some plumulaceous downy barbs may be present at the base.

Smooth, glossy, and highly rigid. The surface has a structural iridescence characteristic of parrots, where light scattering creates the blue effect (Tyndall scattering).

Electric blue coloration, large size relative to other blue birds, rigid central rachis, and lack of horizontal banding or spots found in corvids like Blue Jays.

Tropical rainforests, humid forests, and open woodlands. Typically found near rivers and swamps with tall canopy trees for nesting.

Mainland South America from Panama south to Brazil, Bolivia, Paraguay, and Peru. Often concentrated in the Amazon Basin.

Primary seed disperser and 'ecosystem engineer'. They consume large seeds and nuts, helping to propagate canopy trees across the rainforest.

Hyacinth Macaw (larger, deeper cobalt blue), Lear's Macaw (smaller, darker blue), or Blue-throated Macaw (critically endangered, very similar but with blue throat patch).

The blue color in macaw feathers is structural, not pigment-based. If you were to grind the feather into a powder, it would look grey or black because the light-scattering structure is destroyed.

Fair to Good. Visible fraying and separation of barbs (splits) at the tips suggest these may be molted feathers or have been handled/mounted for a period of time.