(DRAFT) - Taxonomy
                                   Species PO'OULI
                                Species Id ESIS101040
                                   Date 14 MAR 96



TAXONOMY

NAME - PO'OULI OTHER COMMON NAMES - PO'OULI;POOULI; POO-ULI;POO ULI;PO'O-ULI; PO'O ULI; HONEYCREEPER and BLACK-FACED ELEMENT CODE - CATEGORY - Birds PHYLUM AND SUBPHYLUM - CHORDATA, CLASS AND SUBCLASS - AVES, ORDER AND SUBORDER - PASSERIFORMES, FAMILY AND SUBFAMILY - FRINGILLIDAE, GENUS AND SUBGENUS - MELAMPROSOPS, SPECIES AND SSP - PHAEOSOMA, SCIENTIFIC NAME - MELAMPROSOPS PHAEOSOMA AUTHORITY - TAXONOMY REFERENCES - COMMENTS ON TAXONOMY - Po'ouli Melamprosops phaeosoma Casey and Jacobi, 1974 KINGDOM: Animal GROUP: Bird PHYLUM: Chordata CLASS: Aves ORDER: Passeriformes FAMILY: Fringillidae Po'ouli are 135 mm (5.25 in) in length (09,12,25). Above, they are dark grayish brown, washed with paler cinnamon brown on neck and back which becomes brighter on the upper tail coverts and feathers, and on the outer vanes of the wing quills. A dull black mask extends across the forehead, on chin and around eyes, extending backward and terminating in a point. Sides of head and throat (below the black area) and lower parts are pale buff, washed with gray across the breast. Sides and under tail coverts are washed with dull rufous brown and the flanks are light cinnamon brown. Legs and feet are dark brown. The bill is black somewhat conical and the tail is very short almost square (07,09). Po'ouli was described as Melamprosops phaeosoma Casey and Jacobi, 1974, a distinct new genus and species in the family Drepanididae (the family of Hawaiian honeycreepers). Melamprosops phaeosoma was originally placed in the subfamily Psittirostrinae when described in Taxonomy - 1 (DRAFT) - Taxonomy Species PO'OULI Species Id ESIS101040 Date 14 MAR 96 1973 (09,12,19). In 1979, Pratt doubted that Melamprosops was indeed a honeycreeper and considered this genus incertae sedis (07,16). The taxonomy of the Hawaiian honeycreepers was changed in the 6th Edition of the American Ornithologists' Union 1983. Family Drepanididae was changed to a subfamily under the family Fringillidae. Psittirostrini, Hemignathini and Drepanidini tribes were erected. Melamprosops phaeosoma is now tentatively placed in the tribe Drepanidini (02,19, 20,21). The latest published field guide on Hawaiian birds places po'ouli in the subfamily Drepanidinae but does not designate tribes (17). In 1974, the common name "po'o uli" (including a space) was suggested (09), but in 1977 it was recommended that the space be deleted (03). The Hawaii Audubon Society recommends that traditional Hawaiian names (including all diacritical marks) be used as the vernacular names for endemic birds (21). Therefore, the common name of Melamprosops phaeosoma should be "po'ouli." The vernacular name listed in the AOU Checklist (1983) is "poouli" (02,21). The list of "Endangered and Threatened Wildlife and Plants" by the U.S. Fish and Wildlife Service uses the name "po'ouli" (29), which incorporates the glottal stop and is in accord with the traditional Hawaiian spelling (18). Many variants and alternates of the common name for Melamprosops phaeosoma exist in the scientific literature as follows: poouli or Poouli (02,07,21), poo-uli or Poo-uli (01,04,13,15,17,23), poo uli (04), po'o-uli or Po'o-uli (05,17,24), Po'o Uli (06,14,19), po'o uli (09,27), po'ouli or Po'ouli (03,10,18,20,21,22,25,26,29), and black-faced honeycreeper (04,17). The holotype is deposited in the Bernice Pauahi Bishop Museum in Honolulu, Hawaii (No. BBM-X-147112); the paratype is deposited in the American Museum of Natural History, New York, New York (AMNH No. 810456). No other specimens of po'ouli have been collected (05,09). Illustrations of the species can be found in Hawaiian Birdlife by Berger (07), The Birds of Hawaii and the Tropical Pacific by Pratt, Bruner, and Berrett (17), Hawaii's Birds by Shallenberger (24), and the Forest Bird Communities of the Hawaiian Islands: Their Dynamics, Ecology, and Conservation by Scott, Mountainspring, Ramsey, and Kepler (23). Taxonomy - 2
                                  (DRAFT) - Status
                                   Species PO'OULI
                                Species Id ESIS101040
                                   Date 14 MAR 96



STATUS

Coded Status E: Federal Endangered Non-consumptive recreational COMMENTS ON STATUS - U.S. STATUSES AND LAWS: The po'ouli (Melamprosops phaeosoma) has been designated as Endangered pursuant to the Endangered Species Act of 1973 (50 CFR 17.11; P.L. 93-205, 87 Stat. 884; 16 U.S.C. 1531-1540), as amended. The species has this status wherever found including the Island of Maui, Hawaii. This species is protected by the Lacey Act (P.L. 97-79, as amended; 16 U.S.C. 3371 et seq.) which makes it unlawful to import, export, transport, sell, receive, acquire, or purchase any wild animal (alive or dead including parts, products, eggs, or offspring): (1) in interstate or foreign commerce if taken, possessed, transported or sold in violation of any State law or regulation, or foreign law; or (2) if taken or possessed in violation of any U.S. law, treaty, or regulation or in violation of Indian tribal law. It is also unlawful to possess any wild animal (alive or dead including parts, products, eggs, and offspring) within the U.S. territorial or special maritime jurisdiction (as defined in 18 U.S.C. 7) that is taken, possessed, transported, or sold in violation of any State law or regulation, foreign law, or Indian tribal law. RESPONSIBLE FEDERAL AGENCIES: USFWS -Responsible for the management/recovery, listing, and law enforcement/protection of this species. All Federal agencies have responsibility to ensure that any action authorized, funded, or carried out by that agency is not likely to jeopardize the continued existence of the species or result in the destruction or adverse modification of Critical Habitat (50 CFR 402), and to utilize their authorities to carry out programs for the conservation of the species. STATE STATUSES AND LAWS: STATE: Hawaii DESIGNATED STATUS: Endangered ADMINISTRATIVE AGENCY: Dept. of Land and Natural Resources STATE STATUTE: Hawaii Rev. Stat., Chapter 195D. Status - 1 (DRAFT) - Status Species PO'OULI Species Id ESIS101040 Date 14 MAR 96 INTERNATIONAL STATUSES, TREATIES, AND AGREEMENTS: This species is listed as rare in the 1986 IUCN Red List of Threatened Animals. ECONOMIC STATUSES: The species was formerly important to forest ecosystems as an insectivore. It is among the many rare birds sought on Maui by bird watchers. 75/04/21:40 FR 17590/17591 - Proposed rule 75/09/25:40 FR 44148/44151 - Final rule 76/09/30:41 FR 43340/43358 - Updated list 76/10/27:41 FR 47180/47198 - Updated list to correct errors 77/07/14:42 FR 36420/36431 - Updated list 78/12/11:43 FR 58030/58048 - Updated list 79/01/17:44 FR 03636/03654 - Republication of list 80/05/20:45 FR 33768/33781 - Updated list 81/02/27:46 FR 14652/14658 - Notice of review 83/07/27:48 FR 34182/34196 - Updated list 85/07/22:50 FR 29901/29909 - Notice of review 87/07/07:52 FR 25524/25528 - Notice of 5-year review Status - 2
     

HABITAT ASSOCIATIONS

HABITAT - TERRESTRIAL TERRESTRIAL LAND USE - Evergreen Forest Land COMMENTS ON HABITAT ASSOCIATIONS - Po'ouli occur in mesic and wet montane forests (23) from 1,400-2,100 m (4600-6800 ft) with 80 percent of the sightings occurring at 1,800-2,050 m (5900-6725 ft) elevation (15). All known sightings have been in wet 'ohi'a (Metrosideros polymorpha) forests with well-developed understories (23). Most birds were seen in an area of relatively dense, moss-draped vegetation, frequently along gulches and other areas less disturbed by pig activity (15). The upper Hanawi study area (the major area of distribution for the po'ouli) supports a rainforest averaging 13 m (ca. 40 ft) height and 60 percent crown cover, dominated by 'ohi'a (Metrosideros polymorpha) and olapa (Cheirodendron trigynum). The understory is composed of native subcanopy trees, shrubs, and ferns composed of approximately 57 percent shrub cover, 10 percent herb cover and 66 percent fern cover (15). Po'ouli are found in the Hydrandepts-Tropaquods soil association (code rHT). This association is gently sloping to steep. Hydrandepts are moderately well-drained to well-drained soils that have a surface layer high in organic-matter content. The subsoil is dark-brown or dark yellowish-brown silty clay loam or silty clay. Tropaquods are poorly-drained soils that have a peaty or mucky surface layer and a mottled silty clay (11). The tip of the southwestern boundary of the known present distribution of po'ouli may extend into Rock land-Rough mountainous land soils. The possible present observation in The Nature Conservancy's Waikamoi Preserve is in Rock land soil (code rRK), which is characterized by the presence of rock outcrops over 25-90 percent of the surface and by very shallow soils. The land type is nearly level to very steep. Rough mountainous land (code rRT) consists of very steep land broken by numerous intermittent drainage channels. It is dominated by deep, V-shaped valleys that have extremely steep side slopes and narrow ridges between the valleys. Over much of the area, the soil mantle is very thin and ranges from 25-250 mm (1-10 in) in thickness over saprolite (11). Habitat Associations - 1
                                (DRAFT) - Food Habits
                                   Species PO'OULI
                                Species Id ESIS101040
                                   Date 14 MAR 96



FOOD HABITS

TROPHIC LEVEL - OMNIVORE LIFESTAGE FOOD FOOD PART General Evergreen Trees-Flowers/Fruit/Seed General Arthropods General Molluscs Food Habits - 1
                         (DRAFT) - Environment Associations
                                   Species PO'OULI
                                Species Id ESIS101040
                                   Date 14 MAR 96



ENVIRONMENTAL ASSOCIATIONS

G = General A = Adult LIM = Limiting RA = Resting Adult J = Juvenile FA = Feeding Adult RJ = Resting Juvenile BA = Breeding Adult FJ = Feeding Juvenile P = Pupae L = Larvae E = Egg RL = Resting Larvae FL = Feeding Larvae
LIFESTAGE ENVIRONMENTAL ASSOCIATIONS G Coastal Features: Vegetated offshore islands Environment Associations - 1
                               (DRAFT) - Life History
                                   Species PO'OULI
                                Species Id ESIS101040
                                   Date 14 MAR 96



LIFE HISTORY

FOOD HABITS: The po'ouli feed largely on small snails and insects gleaned from low foliage and bark (05,23,25). A study done on the contents of the two specimens collected in 1973 concluded that the birds eat both animal and plant material. Molluscs appeared to be very important, constituting the majority (63 percent) of the observed stomach contents. Arthropods also formed a large fraction (33 percent) of the consumed food, with 90 percent of the arthropods being insects. Food taken from plants was a minor part (3.7 percent) of the po'ouli diet and consisted of 'olapa (Cheirodendron trigynum) fruit fragments. Nectar, if taken, would not have been detected in this study. However, po'ouli have never been seen feeding on flowers (05). The po'ouli feed within low trees and understory plants searching slowly and methodically over leaves, branches and tree trunks, hunting and prying in the bark (05,25). They most frequently foraged from 4-7 m (13-23 ft) height on 'ohi'a (Metrosideros polymorpha), olapa, ohelo (Vaccinium calycinum) and kanawao (Broussaisia arguta). Occasional ground foraging occurred. Prey were captured by gleaning, probing, and pecking chiefly from among moss, lichen, and bark on branches. Birds frequently pulled up lichen and moss mats in search of prey (15). A detailed list of species found in the alimentary tracts of the two birds is described in detail in "A preliminary list of foods of the po'o-uli" by Baldwin and Casey (05). No information is available on food preference in differenct seasons of different life stages. HOME RANGE/TERRITORY: Virtually nothing is known of the home range or territoriality of the po'ouli. No studies of individual movements have been conducted. They have been observed in small flocks with Maui creeper (Paroreomyza montana newtoni), Maui parrotbill (Pseudonestor xanthophrys) (15,23, 25), and twie with Maui nuku-pu'u (Hemignathus lucidus affinus) (08, 25), suggesting that interspecific territories may not be maintained. PERIODICITY: Po'ouli are diurnal. One study showed that the birds spent about 48 percent of their daylight hours foraging and 30 percent quietly perching (15). Seasonal variation in its habits has never been studied. MIGRATION PATTERNS: The po'ouli is non-migratory (07). COVER/SHELTER REQUIREMENTS: To date, po'ouli have only been found in one habitat type and apparently require this intact native forest vegetation for cover and shelter to survive. It is not known if there is a minimum area of cover required. Po'ouli use the understory and subcanopy extensively and appear to be adversely impacted by habitat damage due to pigs. Areas within the known range of po'ouli differ from nearby areas outside its range at the same elevation and general vegetation type. Life History - 1 (DRAFT) - Life History Species PO'OULI Species Id ESIS101040 Date 14 MAR 96 In-range areas show low to moderate pig damage and well developed herb, ground fern, and moss layers, while adjacent areas outside the range show significantly greater pig damage and less ground cover (15,23). REPRODUCTIVE SITE REQUIREMENTS: Only two po'ouli nests have been observed. The nests were composed of twigs and mosses tightly woven into a terminal leaf cluster about 12 m (40 ft) up in an 'ohi'a (Metrosideros polymorpha) tree (28). REPRODUCTIVE CHARACTERISTICS: The first nest was discovered while both birds were building, so only a small amount of information is available on the pre-nesting reproduction behavior. Only the female was observed incubating the eggs. She attended the nest for long periods of time and departed only occasionally to forage. The male foraged in the nesting area and beyond, and brought food items to the female on the nest (28). The exact breeding season is unknown, but the first nest was found on March 3, 1986 and was abandoned sometime between April 8-14 presumably due to heavy rains. On April 16, the birds were observed constructing a second nest. The site was revisited on May 5 and the birds were incubating eggs (28). The length of incubation is not certain but from the information available it is estimated to be between one to three weeks. The clutch size was two (28). PARENTAL CARE: The following information is derived from only one record of successful nesting and is not yet complete. Both the male and female took care of the young in the nest for about 20 days. One chick fledged but the other was observed one day and the following day was missing. Speculations on the fate of the lost chick include possible predation or death due to weakness. The surviving fledging was observed with its parents the day after fledging from the nest, but no other information was provided on duration of family bond (28). POPULATION BIOLOGY: The current population is estimated at 140 birds (23). It is thought to be limited by habitat modification (especially by feral pigs), avian disease, predation from introduced mammals, competition for food resources from introduced birds and invertebrates (especially Japanese white-eyes and garlic snails), and possibly reduction in genetic variability (15,23). There is no population density objective, but population density for po'ouli was estimated in 1975 at 76 birds/ square km (15), in 1980 at 11 birds/ square km (23), in 1981 at 15 birds/ square km, and in 1985 at 8 birds/ square km. These estimates show a steady decline of 90 percent from 1975 to 1985 (15). Incidental observations seem to support this density decline (23). SPECIES INTERRELATIONSHIPS: Po'ouli frequently form small mixed-species flocks, most often with the Maui creeper (Paroreomyza montana) and sometimes including Life History - 2 (DRAFT) - Life History Species PO'OULI Species Id ESIS101040 Date 14 MAR 96 the Maui parrotbill (Pseudonestor xanthophrys) and nuku-pu'u (Hemignathus lucidus affinus). This may facilitate predator avoidance and enhance foraging efficiency (08,15,25). A possible species interrelationship which may have a direct impact on the po'ouli is interspecific competition for food resources from introduced birds especially Japanese white-eyes (Zosterops japonicus) and introduced invertebrates like the garlic snail (Oxychilus alliarius) (15,23). Introduced mammals like mongooses (Herpestes auropunctatus), feral cats (Felis catus), Polynesian rats (Rattus exulans) and black rats (Rattus rattus) have been involved in the decline of many forest birds and could have a direct impact on the po'ouli as predators (15,23). Avian malaria (Plasmodium relictum) and avian pox (Poxvirus avium) carried by mosquitoes (Culex quinquefasciatus) could also have a detrimental impact on po'ouli. Many Hawaiian birds are susceptible to these diseases and so it has been suggested that the po'ouli's distribution is at least in part determined by disease (15,23). OTHER LIFE HISTORY DESCRIPTORS: None. Life History - 3
                           (DRAFT) - Management Practices
                                   Species PO'OULI
                                Species Id ESIS101040
                                   Date 14 MAR 96



MANAGEMENT PRACTICES

RESULT MANAGEMENT PRACTICE Beneficial Restricting/regulating human disturbance of populations Beneficial Restricting/regulating human use of habitats Beneficial Land Acquisition Beneficial Controlling/Removing Nonnative Vegetation Beneficial Maintaining Sperm/Seed Banks Beneficial Stocking captive-reared wild-strain animals Beneficial Disease Control Measures Beneficial Controlling/Removing Invertebrates Beneficial Controlling/Removing Exotic Vertebrates Beneficial Controlling/Removing Feral Animals Adverse Food Supply Reduction Existing Food Supply Reduction Adverse Low Gene Pool Existing Low Gene Pool Adverse Disease Existing Disease Adverse Predation Existing Predation Adverse Competition Existing Competition Adverse Exotic/Feral/Introducted Species Existing Exotic/Feral/Introducted Species Adverse Erosion Existing Erosion Adverse Vegetation Composition Changes Existing Vegetation Composition Changes Adverse Forest Alteration Existing Forest Alteration COMMENTS ON MANAGEMENT PRACTICES - The limited distribution and small population size of the po'ouli are probably the result of many factors occurring over an extended period of time. Fossil records from the dry leeward side of East Maui near Ulupalakua suggest that the po'ouli had a wider distribution (and probably higher numbers) before Polynesian contact (ca. 400 A.D.). The mature dry mesophytic forests in this area may have been their optimal habitat, but these forests have been almost totally altered to non-native plant communities through human and feral ungulate activity (15). More recent factors that have contributed to the current status of the po'ouli are thought to be habitat modification, predation, avian disease, interspecific competition and gene pool impoverishment (15). Habitat modification in the Hanawi area is due mostly to feral pigs, which apparently did not significantly penetrate the native forests until the introduction of the European domestic pig (23). Rooting and wallowing activities of feral pigs cause extensive damage in native ecosystems by radically altering the understory, hindering Management Practices - 1 (DRAFT) - Management Practices Species PO'OULI Species Id ESIS101040 Date 14 MAR 96 forest regeneration, facilitating invasion of introduced pest plants, and inducing severe soil erosion, especially on steep slopes (15,23). In addition, pig activity generates mosquito breeding sites, which may assist mosquitoes in establishig populations at higher elevations. Pigs also destroy microhabitats critical to the life cycle of land snails and other invertebrates that are major food items for po'ouli (23). Po'ouli densities estimated at the Hanawi site in 1975, 1981, and 1985 appear to show a steady decline. Correlated with this trend was an increase in pig damage in the understory (15,23). The authors suggest that this factor is an extreme threat to the survival of the po'ouli and recommend removal of pigs permanently from this and adjacent areas (23). Goats generally occupy forest edges and shrubland habitat where they cause great damage to drier and more open Hawaiian ecosystems. They are a major problem in Haleakala National Park and adjacent areas where they devastate alpine grassland and subalpine scrubland, and also enter high-elevation wet forests. The advance of goats into upper wet forest edges on Maui threatens forest birds including the po'ouli (23). Introduced predators have been clearly implicated in the decline of many forest birds. Of these predators, the black rat (Rattus rattus), Polynesian rat (Rattus exulans), feral cats (Felis catus), and the small Indian mongoose (Herpestes auropunctatus) may affect the po'ouli. Substantial populations of the black rat and the Polynesian rat occur as high as 2,000 m (ca. 6700 ft) elevation in the Hanawi area, and unidentified feathers have been found in the stomachs of both species. It has been argued that the black rat's arboreal habits affect native birds through nest predation. Cats occur in the Hanawi area and are known to be effective predators on native birds. The small Indian mongoose may be an occasional predator because of its ground feeding habits. The low foraging height and frequent use of understory substrates would seem to make the po'ouli more vulnerable to predation than canopy feeders (15,23). Because the endemic Hawaiian avifauna evolved in the absence of many disease factors prevalent in continental areas, numerous species show marked susceptibility to (and occasionally demonstrate mortality from) introduced avian diseases, particularly avian malaria (Plasmodium relictum) and avian pox (Poxvirus avium) (15). Malaria and pox were probably introduced to the Hawaiian Islands via introduced birds (23). The primary vector for these diseases is the mosquito, especially ornithophilous night-biting mosquito (Culex quinquefasciatus). The lower elevational range for the po'ouli is near the upper limit for mosquitoes, suggesting that its distribution is at least in part determined by disease (15,23). Interspecific competition for food resources occurs to some extent from other birds and from introduced invertebrates. Other birds that feed on invertebrates include Japanese white-eyes (Zosterops japonicus) and several other native species. Competition from native birds in the past has probably been compensated for by the honeycreepers evolutionary specialization. The Japanese white-eye was introduced in the 1930's and is the Management Practices - 2 (DRAFT) - Management Practices Species PO'OULI Species Id ESIS101040 Date 14 MAR 96 most abundant and widespread omnivorous passerine in Hawaiian forests. It has increased in numbers on East Maui above 1,500 m (ca. 5000 ft) elevation since 1967 and has been found to be the most significant competitor of native passerines for food resources (15,23). The garlic snail (Oxychilus alliarius), an introduced snail, is abundant and ubiquitous in montane rainforests on Maui and may be a very effective competitor for food resources with the po'ouli. The garlic snail is suspected of preying on the native land snails and contributing to the decline of snail populations, particularly ground dwelling species. Since a major food source for po'ouli is native snails and po'ouli occasionally forage on or near the ground (05), it has been suggested that a major portion of the original resource base is no longer present. Hence, the garlic snail may have a major impact on the po'ouli (15,23). Since the fossil record suggests that the po'ouli once had a wider distribution and higher numbers, gene pool impoverishment may also be a limiting factor. The population has probably lost some of its original genetic variability which could lead to reduced ability to adapt to novel environmental perturbations, such as pig activity or introduced competitors (15). APPROVED PLAN: U.S. Fish and Wildlife Service. 1984. Maui-Molokai Forest Birds Recovery Plan. U.S. Fish and Wildlife Service, Portland, OR. 33 pp. The planning of recovery actions for the Po'ouli suffers from an absence of historical information and from a sketchy knowledge of the bird's life history and ecology. Captive breeding of this species is given low priority by the Maui Forest Birds Recovery Plan. The Recovery Plan states as its principal recovery action the securing of essential habitat (i.e., land acquisition and land zoning), to be managed for forest birds. All essential habitat lies on the upper slopes of Haleakala within the boundary of the Haleakala National Park or on state or private lands (including The Nature Conservancy lands) zoned as a Conservation District. Yet the very small, localized population of po'ouli only occurs on state lands within the essential habitat. Management of habitat for forest birds should include control of feral ungulates, rodents, mosquitoes (disease vectors), and alien plants. Human access should be controlled. Badly needed is further research and censusing of the po'ouli. Not mentioned in the recovery plan is the recent incursion of the garlic snail (Oxycheilus sp.), a predator of and competitor with small native land snails on which the po'ouli feeds. The impact of this alien snail on the po'ouli's food base should be assessed. The recovery plan recommends public education to improve support for recovery programs. Lack of management of essential forest bird habitat on these State lands remains a serious threat to the po'ouli. Declaration of the Hanawi Natural Area Reserve secures all lands within the species range. Though de facto wilderness, these forests suffer from browsing and rooting by feral pigs, from incursion by alien plants, and from other factors leading to the degradation of forests as habitat for native birds. Management Practices - 3 (DRAFT) - Management Practices Species PO'OULI Species Id ESIS101040 Date 14 MAR 96 A captive breeding program including a sperm bank is being planned by the State and the U.S. Fish and Wildlife Service and may include the po'ouli among the species propagated. Management Practices - 4
                                   (DRAFT) - References
                                     Species PO'OULI
                                  Species Id ESIS101040
                                      Date 14 MAR 96



     

References

***** REFERENCES FOR ALL NARRATIVES EXCEPT N-OCCURRENCE ***** 01 American Ornithologists' Union. 1982. Thirty-fourth supplement to the American Ornithologists' Union checklist of North American birds. Suppl. to the Auk 99(3):1CC-16CC. 02 American Ornithologists' Union. 1983. Checklist of North American birds. Sixth ed. Allen Press, Lawrence, KS. 03 Anonymous. 1977. Corrigenda. 'Elepaio 37(11):139. 04 Association of Systematics Collections. n.d. Checklist of birds of the United States and the U.S. Territories. Prepared for East. Energy and Land Use Team, U.S. Fish and Wildl. Serv., Kearneysville, WV. 05 Baldwin, P.H., and T.L.C. Casey. 1983. A preliminary list of foods of the po'o-uli. 'Elepaio 43(7):53-56. 06 Banko, W.E. 1979. History of endemic Hawaiian birds: specimens in museum collections. Avian History Rept. 2, Coop. Natl. Park Res. Studies Unit, Univ. of HI, Honolulu. 07 Berger, A.J. 1981. Hawaiian birdlife. Second ed. The Univ. Press of HI, Honolulu. 08 Casey, T.L.C. 1974. New bird in paradise. Defenders 49(2):120-131. 09 Casey, T.L.C., and J.D. Jacobi. 1974. A new genus and species of bird from the island of Maui (Passeriformes: Drepanididae). Bernice P. Bishop Mus. Occ. Papers 24(12):215-226. 10 Conant, S. 1981. Recent observations of endangered birds in Hawaii's National Parks. 'Elepaio 41(7):55-61. 11 Foote, D.E., E.L. Hill, S. Nakamura, and F. Stephens. 1972. Soil survey of island of Kauai, Oahu, Maui, Molokai, and Lanai, State of Hawaii. U.S. Dept. of Agric. Soil Conserv. Serv. Wash., D.C. 12 Jacobi, J.D., and T.L.C. Casey. 1974. New species of bird discovered on Maui, Hawaii. 'Elepaio 34(8):83-84. 13 U.S. Fish and Wildlife Service. 1984. Maui-Molokai forest birds Recovery Plan. U.S. Fish and Wildl. Serv., Portland, OR. 33 pp. 14 Marshall, D.B. 1975. Report of the American Ornithologists' Union committee on conservation 1974-1975. Suppl. to the Auk 92(4):1B-16B. 15 Mountainspring, S., T.L.C. Casey, C.B. Kepler, and J.M. Scott. In press. Ecology, behavior and conservation of the po'o-uli. Wilson Bull. 16 Pratt, H.D. 1979. A systematic analysis of the endemic avifauna of the Hawaiian Islands. Ph.D. thesis, Louisiana State Univ., Baton Rouge, LA. 17 Pratt, H.D., P.L. Bruner and D.G. Berrett. 1987. A field guide to the birds of Hawaii and the tropical Pacific. Princeton Univ. Press, Princeton, NJ. 18 Pukui, M.K., and S.H. Elbert. 1986. Hawaiian dictionary. Rev. and enlarged ed. Univ. of Hawaii Press, Honolulu. 19 Pyle, R.L. 1977. Preliminary list of the birds of Hawaii. 'Elepaio 37(10):110-121. 20 Pyle, R.L. 1979. Preliminary list of the birds of Hawaii, Amendment No. 1. 'Elepaio 40(4):55-58. References - 1 (DRAFT) - References Species PO'OULI Species Id ESIS101040 Date 14 MAR 96 21 Pyle, R.L. 1983. Checklist of the birds of Hawaii. 'Elepaio 44(5):47-58. 22 Pyle, R.L. 1986. Recent observation August - November, 1985. 'Elepaio 46(10):112. 23 Scott, J.M., S. Mountainspring, F.L. Ramsey, and C.B. Kepler. 1986. Forest bird communities of the Hawaiian Islands: their dynamics, ecology, and conservation. Studies in Avian biology No. 9. Cooper Ornithol. Soc., Lawrence, KS. 24 Shallenberger, R.J. 1974. Field notes. 'Elepaio 35(2):20. 25 Shallenberger, R.J. 1986. Hawaii's birds. Third ed. 2nd Rev. Hawaii Audubon Soc., Honolulu. 26 The Nature Conservancy of Hawaii. 1986. 1986 biological inventory of the Waikamoi Preserve. The Nature Conservancy of Hawaii, Honolulu. 27 Titcomb, M., and W.C. Gagne. 1976. List of Hawaiian bird names. 'Elepaio 36(10):117-126. 28 U.S. Fish and Wildlife Service. 1986. News release, Region 1. Portland, OR. 29 U.S. Fish and Wildlife Service. 1987. Endangered and threatened wildlife and plants. Reprint of 50 CFR 17.11 and 17.12, April 10. Wash., D.C. 32 pp. ***** REFERENCES FOR N-OCCURRENCE NARRATIVE ONLY ***** 01 Casey, T.L.C., and J.D Jacobi. 1974. A new genus and species of bird from the island of Maui (Passeriformes: Drepanididae). Bernice P. Bishop Mus. Occas. 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