The Glaucous-blue Grosbeak (Cyanoloxia glaucocaerulea), also known as the Indigo Grosbeak, is a passerine bird in the family Cardinalidae, endemic to South America. Its distribution is primarily in Argentina, Southern Brazil, and Uruguay.
This species exhibits marked sexual dimorphism. The adult male sports an intense bright blue plumage, while the female is a uniform cinnamon-brown color.
The specimen in the photograph, with its cinnamon-brown coloration and vestiges of blue on the forehead and cheek, is identified as a juvenile male in transition towards its adult coloring.
• Azulito, Reinamora chica, Picogrueso índigo
• Azulinho
• Glaucous-blue Grosbeak, Indigo grosbeak
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Family: Cardinalidae
Genus: Cyanoloxia
Species: C. glaucocaerulea
Laguna Garzón area, Maldonado–Rocha border, Uruguay
Camera: Canon EOS R7
Lens: Sigma 150-600mm F5-6.3 DG OS HSM | Contemporary
Capture Information:
Focal Length: 600.0 mm
Shutter Speed: 1/1000
Aperture: f/6.3
ISO: 400
Photo Taken: October 19, 2025
High resolution
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