||Kauai Amakihi, Kaua'i 'Amakihi
Viridonia stejnegeri stejnegeri Collar et al. (1994)
Viridonia stejnegeri stejnegeri Sibley and Monroe (1990, 1993)
||11 cm. Small honeycreeper with medium-sized, sickle-shaped bill. Male olive-yellow, brighter on head and underparts, with dark grey lores. Bill dark on culmen shading to bluish-grey base of mandible. Female and juvenile similar but less bright. Similar spp. `Anianiau H. parvus yellower, with much smaller bill and no black in lores. `Akeke`e Loxops caeruleirostris has shorter, bluish bill surrounded by dark mask, prominent yellow forehead and rump. Male Kaua`i Nukupu`u H. lucidus hanapepe yellow on head and breast, white below with all-black, thin bill, female nearly lacking yellow entirely. Voice Song a vigorous trill with short introductory note, sometimes on level pitch, sometimes descending. Typical call a sharp chirp. Also gives buzzy mewing note. Hints Bill much larger than in other `Amakihis, leading to many misidentifications as Nukupu`u. Easily seen at Koke`e.
|Red List Category & Criteria:
||Butchart, S. & Symes, A.
||Baker, P.E., Camp, R., Donaldson, P., Fretz, S., Gorresen, M., Leonard, D., Roberts, P., Scott, J., Snetsinger, T., VanderWerf, E. & Woodworth, B.
||Benstead, P., Derhé, M., Isherwood, I., Stattersfield, A., Stuart, T., Taylor, J.
This species qualifies as Vulnerable because it has a very small range, occupying a small area of upland forest on one island, where it is at risk from the effects of exotic taxa. Although habitat is being degraded within its range, it apparently benefits from the introduction of banana poka and is able to utilise a broad range of habitat types.
|Previously published Red List assessments:|
- 2008 – Vulnerable (VU)
- 2004 – Vulnerable (VU)
- 2000 – Vulnerable (VU)
- 1994 – Vulnerable (VU)
- 1988 – Lower Risk/least concern (LR/lc)
|Range Description:||Hemignathus kauaiensis is endemic to Kaua`i in the Hawaiian Islands (USA). It is common in the uplands including the Alaka`i Wilderness Preserve and especially in Kôke`e State Park, and an isolated population occurs in the Makaleha Mountains (USFWS 1983, Pratt 1993, Conant et al. 1998). Historically it ranged down to coastal elevations, as indicated by fossil evidence (P. Roberts in litt. 2007). During 1968-1973, surveys estimated the population at 10,743 (± 970 standard error), with 76% of the population in the "west of Alaka`i" study compartment (USFWS 1983). Subsequent population estimates suggested that the population was greater than 15,000, possibly up to 20,000 birds, and increasing (Scott et al. 1986, Jacobi and Atkinson 1995, Lindsey et al. 1998). In 1992, Hurricane Iniki devastated forests throughout Kaua`i and all bird populations on the island appeared to have been drastically reduced (Pratt 1993, 1994). However, population estimates suggest that this species has recovered (Jacobi and Atkinson 1995, Lindsey et al. 1998, P. Donaldson in litt. 1999, Foster et al. 2004), with the estimated population in the Alaka`i and Kôke`e areas increasing significantly to around 42,000 individuals in 2000 (Foster et al. 2004). |
|♦ Continuing decline in area of occupancy (AOO):||Unknown|
|♦ Extreme fluctuations in area of occupancy (AOO):||No||♦ Estimated extent of occurrence (EOO) - km2:||230|
|♦ Continuing decline in extent of occurrence (EOO):||Unknown||♦ Extreme fluctuations in extent of occurrence (EOO):||No|
|♦ Number of Locations:||2||♦ Continuing decline in number of locations:||Unknown|
|♦ Extreme fluctuations in the number of locations:||No||♦ Lower elevation limit (metres):||600|
|Range Map:||Click here to open the map viewer and explore range.|