Facts about Elapaio

1. 08

   Male elaepaios establish and defend individual territories of approximately 1 to 2 hectares year-round, making them among the most territorial Hawaiian honeycreepers.

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2. 07

   Ancestral elaepaio populations likely colonized the Hawaiian archipelago between 5 and 10 million years ago, making them one of the oldest endemic honeycreeper lineages still surviving today.

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3. 06

   Elaepaios have evolved specialized curved bills measuring approximately 0.6 inches long that allow them to probe into tree bark crevices for hidden insects and larvae.

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4. 05

   Three subspecies of elaepaio inhabit different Hawaiian islands, with the Kauai population showing distinct plumage differences from those found on Oahu and Hawaii Island.

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5. 04

   During the 1970s, elaepaio populations declined dramatically due to avian pox and mosquito-borne diseases spreading from introduced bird species in Hawaiian lowland forests.

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6. 03

   Elaepaios can live up to 17 years in the wild, making them among the longest-lived Hawaiian honeycreepers despite their small body size of only 5 inches.

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7. 02

   The elaepaio's high-pitched, repetitive call of tsi-tsi-tsi serves as a territorial advertisement across Hawaiian forests where it hunts insects on tree bark.

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8. 01

   Hawaii's elaepaio birds possess only four tail feathers, fewer than most other Hawaiian honeycreepers, an adaptation for navigating dense native forest vegetation.

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