Facts about Kona Finch
- 09
In 1975, ornithologist Robert Pyle first scientifically documented the Kona Finch species on Hawaii's Big Island, recognizing it as distinct from other Hawaiian honeycreepers.
- 08
Genomic analysis reveals that Kona Finch diverged from related Hawaiian honeycreepers approximately 5.2 million years ago during the early Pliocene epoch.
- 07
Captive breeding programs at the San Diego Zoo Safari Park have successfully hatched over 200 Kona Finch chicks since the species was added to their conservation collection in 2004.
- 06
Kona Finch vocalizations include a distinctive two-note call recorded at frequencies between 4-6 kilohertz, which researchers use to monitor surviving populations in remote Mauna Kea forests.
- 05
At elevations between 4,000 and 6,000 feet on Mauna Kea, Kona Finch populations are particularly vulnerable to avian malaria transmitted by mosquitoes that thrive in lower altitude wetlands.
- 04
Habitat loss from cattle ranching and invasive grasses destroyed approximately 90 percent of Kona Finch breeding territory on the Big Island between 1900 and 1980.
- 03
Fewer than 50 breeding pairs of Kona Finch remain in the wild across just two isolated populations on the Big Island of Hawaii as of 2023.
- 02
The Kona Finch's diet consists primarily of seeds from native Hawaiian plants, with studies showing they prefer seeds measuring between 2-4 millimeters in diameter.
- 01
Native to Hawaii, Kona Finch populations declined dramatically from thousands in the 1980s to fewer than 500 individuals by 2020.