HAWAIIAN ENDEMIC BIRDS |
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Most of these photos are from the "Big Island" of Hawaii. The Kilauea Caldera was active in Hawaii Volcanoes National Park, spewing extensive steam throughout the day (left) that contributed to a sulfurous "vog" over parts of the island. At night, though, the glow from the active lava could be seen (below). The rarer native birds are restricted to high elevation cloud forests on Hawaii and on Maui, and access to protected areas is restricted. We had obtained permits long in advance by hiring Jack Jeffrey as our guide for a day in the Hakalau NWR on Hawaii. On Maui, we had arranged for Chuck Probst to guide as a docent into the Nature Conservancy's Waikamoi Preserve. |
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Nene [Hawaiian Goose] Branta sandvicensis is found on sparsely vegetated slopes on the volcanoes of Hawaii. The photo at the top of the page shows an adult with the summit of Mauna Kea in the background. Active re-introduction programs have aided populations on Hawaii, and permitted re-establishment of a small population within Haleakala National Park, Maui (left). There we found a pair with a recently hatched precocial young. On Maui we also observed the Hawaiian Coot Fulica alai, and the Hawaiian races of Black-crowned Night-Heron Nycticorax nycticorax hoactli and Black-necked Stilt [Ae'o] Himantopus mexicanus knudseni. All are shown below in this photo from Kealia Pond NWR. [The wader at top left is a migrant Long-billed Dowitcher.] |
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Hawaiian Hawk ['Io] Buteo solitarius is found on the 'Big Island' only, where dark morphs and light morphs are both present. [We saw some of each]. It must be doing reasonably well as we saw 4 different individuals in a single day along the Kona coast. One light morph flew in and perched above us at Manuka State Park (right). The hawk takes small birds regularly, and the woods came alive with scolding songbirds when this individual appeared. |
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'Elepaio is the only member of the Monarchidae to reach Hawaii. The rest of the Old World family is found in Australasia and the south Pacific. It is a very active little flycatcher, often cocking its tail up, and I had difficulty obtaining one shot. On Oahu, we searched for Oahu 'Elepaio C. gayi, and heard it at Kuli'ou'ou Valley, but only I got a very quick glimpse. |
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'Oma'o Myadestes obscurus is a small grayish thrush that is fairly common in forest on Hawaii, but difficult see. Our birds at Hakalau NWR were visiting a fruiting tree (right). |
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While on Oahu, we searched out Oahu 'Amakihi H. ellisianus, which is a greener species and without the mask. |
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The 'I'iwi Vestiaria coccinea is the 'classic' Hawaiian honeycreeper — surely the best known from its use in commercial ventures as an icon of Hawaii — but its populations are now limited to high elevations on Maui and Hawaii. At Hakalau NWR it was the commonest species encountered. Yet it is so quick and active, and spends so much time with its bill buried in a flower, that I found it very difficult to photograph. |
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The 'Akepa Loxops coccineus is endemic to Hawaii (a population on Maui is now believed to be extinct). It is sexually dimorphic, with rather drab green females (below left) but bright orangey-red adult males (below right). It can be thought of as the "crossbill" in Hawaii, and actually has the tip of its bill crossed. It is classified as Endangered, and exists only in three fragmented populations on the 'Big Island,' with a population estimate of ~12,000 birds. | ||||
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With Jack Jeffrey at Hakalau Reserve, we hiked through three known territories of pairs that had each fledged a single young. These young birds gave loud contact calls often, and this permitted us to locate all three of the youngsters by sound — two of them were located and watched for extensive periods. It is classified as Endangered, with only 1200 birds estimated to exist within its fragmented habitat. It was certainly the avian highlight of this trip. |
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page created 16 Jan 2012 | ||||
all text & photos © Don Roberson, except as otherwise indicated; all rights reserved |