rouxinol-grande-dos-caniços vs cigarrinha-ruiva

The Great Reed Warbler is larger and more robust compared to the Savi's Warbler, with a stronger bill and longer tail. In the field, the Great Reed Warbler's louder and more varied song contrasts with the Savi's Warbler's more mechanical, reeling song.

Check size and structure: The Great Reed Warbler is larger with a stronger bill and longer tail. Listen for song: Great Reed Warbler's song is loud and varied, contrasting with the Savi's Warbler's mechanical reel.

The Great Reed Warbler is noticeably larger and more robust than the Savi's Warbler.

The Great Reed Warbler has a loud, varied song, while the Savi's Warbler produces a more mechanical, reeling song.