How to Identify New Zealand Pigeon Feathers

What New Zealand Pigeon's Feathers Look Like

The kereru is a large, heavy-bodied pigeon, and its feathers are correspondingly big and richly colored. Back, wing, and head feathers are a deep, glossy iridescent green shifting to bronze, copper, and purple depending on the angle of light — this shimmering metallic quality on an otherwise dark feather is the single strongest clue to this species. The breast and belly, by contrast, are pure white with a sharp, clean boundary against the dark iridescent chest — a body feather that is bright white on one end and iridescent dark green at the base, or a pure white feather with no iridescence at all, both fit this pattern. Flight feathers are large and broad, 15-22 cm, dark bronze-green to blackish, with a slightly glossy sheen even on the flight feathers themselves. Tail feathers are broad and rounded, 14-18 cm, dark gray-green to blackish with a faint pale terminal band. Overall feather size is large for a New Zealand forest bird, comparable to or bigger than a domestic pigeon, and shafts are thick, pale gray to whitish.

Step-by-Step: Is This Feather From a New Zealand Pigeon?

• Check for iridescence. Tilt the feather in the light; a green-bronze-purple shimmer on the upperside is highly distinctive.
• Measure size. Flight feathers of 15-22 cm and a generally large, robust feather structure fit this large pigeon.
• Look for the white-versus-dark contrast if you find a body feather — pure white breast/belly feathers versus glossy dark chest/back feathers, with a sharp boundary between the two.
• Feel the vane. Feathers should be broad, somewhat stiff, and pigeon-like in shape (rounded tips), not narrow or pointed.
• Rule out introduced pigeons/doves by the iridescent green-bronze sheen, which rock pigeons and spotted doves lack in this combination.
• Confirm native forest habitat, since kereru rarely stray far from bush with fruiting trees.

Similar Species & How to Tell Them Apart

Rock Pigeon (feral pigeon), common in New Zealand towns, shows gray body feathers with only a limited iridescent green-purple patch confined to the neck, not the extensive shimmering back/wing coloring of kereru, and lacks the crisp white breast. Chatham Island Pigeon, a related subspecies/species restricted to the Chathams, is essentially identical in feather appearance and can only be distinguished by locality. Introduced doves (e.g., Spotted Dove) are much smaller with plain gray-brown feathers and no iridescence at all. The kereru's large size combined with true iridescent green-bronze coloring and sharply white underparts is not matched by any other commonly encountered bird in mainland New Zealand.

Where & When You'll Find Them

Kereru live in native and exotic forest, as well as well-treed urban parks and gardens, across both main islands, feeding heavily on fruit (making them key seed dispersers for large-fruited native trees). They molt gradually over the austral summer and autumn (roughly December through May), so both fresh, richly iridescent feathers and duller, worn ones can be found beneath favored fruiting trees such as taraire, karaka, or puriri during this extended window. Because kereru are large, somewhat clumsy fliers that often collide with structures, isolated large feathers are also sometimes found near windows or under power lines in wooded suburbs.