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Blue-and-yellow Macaw, also known as the Blue-and-gold Macaw
Secondary flight feather (Remex)

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

Kingdom: Animalia; Phylum: Chordata; Class: Aves; Order: Psittaciformes; Family: Psittacidae; Genus: Ara; Species: ararauna

Family: Psittacidae (True Parrots / Neotropical Parrots)

Shape
Generally asymmetrical with a broad, rounded tip. The leading edge is narrower than the trailing edge, typical of secondary feathers.
Size
Approximately 12-15 cm (4.7-6 inches) in length, which is consistent with the mid-sized secondary flight feathers of a large macaw.
Rarity
Common in its natural range and extremely common in aviculture; however, some local populations are declining due to habitat loss.
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Description

The Blue-and-yellow Macaw is a massive, stunning parrot reaching 86 cm in length. It features vivid blue upperparts, golden-yellow underparts, a green forehead, and a black throat. Highly intelligent and social, they move in pairs or family groups.

Colour & Pattern

Brilliant cerulean blue on the dorsal (upper) surface. The underside (ventral) is typically dark greyish-black or olive-gold. There is no banding, which is characteristic of the solid blue dorsum of this species.

Barb Structure

Densely interlocked pennaceous barbs providing a rigid and airtight vane for flight. Base of the feather shows some downy, plumulaceous barbs for thermoregulation.

Texture & Surface

Smooth, firm, and slightly glossy on the upper surface due to structural coloration. The surface feels waxy and highly water-resistant.

Key Features

Solid vivid blue dorsal color with a dark central rachis and no barring. Size and stiffness distinguish it from smaller parakeets or jays.

Habitat

Tall humid forests, gallery forests in savannas, and swampy areas with palm trees.

Geographic Range

Widespread across South America, from Panama south to Brazil, Bolivia, and Paraguay. Frequently found in the Amazon Basin.

Ecological Role

Primary seed predator and disperser. They use their powerful beaks to crack nuts that other animals cannot open, playing a key role in forest regeneration.

Similar Species

Hyacinth Macaw feathers are deeper indigo and larger. Blue-throated Macaw feathers are nearly identical but extremely rare. Blue Jay feathers are much smaller and usually barred.

Interesting Facts

Macaws can live for over 50 years. Their blue color is not liquid pigment but 'structural color' caused by the scattering of light within the feather cells (Tyndall scattering).

Condition Notes

Good condition; the vane is mostly intact, though there is minor fraying at the tip and some separation of the barbs near the base (hickies), likely from natural wear or grooming behavior.

Notes

Macaws

Blue-and-yellow Macaw, also known as the Blue-and-gold Macaw | Feather Identifier