Acantisita Roquero vs Mielero Tui

The South Island Wren is a small, inconspicuous bird, while the Tui is larger and more conspicuous with distinctive vocalizations. The most reliable field mark is the Tui's unique white throat tuft, which the South Island Wren lacks.

Look for the Tui's white throat tuft and iridescent plumage. Note the size difference: the Tui is significantly larger. Listen for the Tui's complex vocalizations, which are more varied than the South Island Wren's.

The South Island Wren is much smaller than the Tui.

The Tui has a distinctive white throat tuft and iridescent plumage, while the South Island Wren has more subdued, earth-toned plumage.

The Tui is known for its complex and varied vocalizations, while the South Island Wren's vocalizations are less prominent.