(DRAFT) - Taxonomy
                         Species WARBLER, REED, NIGHTINGALE
                                Species Id ESIS101003
                                   Date 14 MAR 96



TAXONOMY

NAME - WARBLER, REED, NIGHTINGALE OTHER COMMON NAMES - WARBLER, REED, NIGHTINGALE; WARBLER, WILLOW;WARBLER, REED; WARBLER, REED, CAROLINE;WARBLER, REED, CAROLINE ISLANDS;WARBLER, REED and NAURU; GA' GA' KARISU; LIMWEDI;LICHOK ELEMENT CODE - CATEGORY - Birds PHYLUM AND SUBPHYLUM - CHORDATA, CLASS AND SUBCLASS - AVES, ORDER AND SUBORDER - PASSERIFORMES, FAMILY AND SUBFAMILY - MUSCICAPIDAE, GENUS AND SUBGENUS - ACROCEPHALUS, SPECIES AND SSP - LUSCINIA, SCIENTIFIC NAME - ACROCEPHALUS LUSCINIA AUTHORITY - TAXONOMY REFERENCES - COMMENTS ON TAXONOMY - Nightingale Reed Warbler Acrocephalus luscinia (Quoy and Gaimard, 1830) KINGDOM: Animal GROUP: Bird PHYLUM: Chordata CLASS: Aves ORDER: Passeriformes FAMILY: Muscicapidae The nightingale reed warbler is a slender, overall pale yellowish-buff bird. Pale yellow buff below; rufous brown or grayish olive brown above. The bill is horn colored on the upper mandible, more yellowish on the lower mandible, and rather long and slender. Feet are light gray. The various subspecies vary from about 15 to 20 centimeters in length. The female resembles the male but is slightly smaller (01,09,15). The warbler was described from Guam in 1831 by Quoy and Gaimard as Thryothorus luscinius, but has since undergone a variety of taxonomic treatments (01,20). The two major distinct populations include the Mariana Island and Caroline Island populations. Each of these have been known by several different genera. Generic synomyms for the Mariana population include; Thryothorus, Hybristes, Tatare, and Conopoderas. Synomyms for the Caroline Island population include; Sylvia, Eparnetes, Tatare, Calamodyta, Calamoherpe, and Conopoderas. Taxonomy - 1 (DRAFT) - Taxonomy Species WARBLER, REED, NIGHTINGALE Species Id ESIS101003 Date 14 MAR 96 All of these names have now been preempted by the genus Acrocephalus, the genus assigned to reed warblers found throughout the old world and thought to be the ancestral stock of the Pacific island populations (01,15). Species names applied have been nearly as varied as the generic names assigned, and include syrinx, orientalis, mariannae, stentoreus, and yamashinae (01). These have now been generally lumped into the single species A. luscinia (01,15). However, a new field guide will retain three different species, A. luscinia in the Mariannas, A. syrinx in the Carolines (and possibly Pagan), and A. rehsei in Nauru (18). Populations of reed warblers within the Marianas have been assigned to various subspecies. These are; A. l. luscinia on Guam, Saipan, and Almagan; A. l. yamashinae on Pagan; and A. l. nijoi on Agiguan. Populations in the Caroline Islands all belong to the same subspecies, A. l. syrinx. The single isolated population on Nauru is known as A. l. rehsei (01,07). Common names for the reed warbler include; the ga' ga' karisu (Marianas), the limwedi (Ponape), the lichok (Truk), and the nightingale reed warbler. Baker examined 17 specimens at the U.S. National Museum and 57 at the American Museum of Natural History, and wrote that Mayr examined 7 specimens in the Paris Museum (01). Other specimens can likely be found in Germany, Japan, and at the Bernice P. Bishop Museum in Honolulu, HI. Illustrations can be found in Kittliz (1835), Pratt et al. (1979), and Pratt et al. (in press) (11,17,18). Taxonomy - 2
                                  (DRAFT) - Status
                         Species WARBLER, REED, NIGHTINGALE
                                Species Id ESIS101003
                                   Date 14 MAR 96



STATUS

Coded Status E: Federal Endangered Non-consumptive recreational COMMENTS ON STATUS - U.S. STATUSES AND LAWS: The nightingale reed warbler (Acrocephalus luscinia) has been designated an Endangered species 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. This species has this status wherever found including the U.S. Pacific Island Trust Territories known as The Federated States of Micronesia and the Commonwealth of the Northern Mariana Islands, of the western Pacific Ocean. 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 (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. There is some confusion regarding exactly which populations of the nightingale reed warbler are actually covered by the U.S. Endangered Species Act. The original listing (70-06-02:35 FR 08495) only covered the Nauru Island subspecies (Acrocephalus luscinia rehsei). Shortly thereafter, the species (A. luscinia) was listed as endangered on the foreign list (70-12-02:35 FR 18320). This second list superceded the first list, rather than added to it. Though in the second Federal Register list only the Mariana Islands population was listed as endangered, it was not legal to list populations at that time. Thus, the species as a whole (throughout it foreign range) was necessarily considered endangered. This included populations in the Marianas with the exception of Guam, populations in the Caroline Islands (Ponape, Truk, and Yap), and the population on Nauru. The population on Guam could not legally be considered endangered because Guam was considered part of the U.S., and for a species to be considered endangered within the U.S. it must be included on the "native" U.S. list, which the reed warbler is not. Thus, as best as can be determined, all reed warbler populations are presently considered endangered with the exception of the (now Status - 1 (DRAFT) - Status Species WARBLER, REED, NIGHTINGALE Species Id ESIS101003 Date 14 MAR 96 extinct) Guam population. RESPONSIBLE FEDERAL AGENCIES: USFWS -Responsible for the management/recovery, listing, and law enforcement/protection of this species. NPS -Responsible for the law enforcement/protection of this species with applicable State and Federal laws on public lands under their control. Also responsible for conservation (Nat. Park System Organic Act - 16 U.S.C. 1, 2-3)/management/recovery on National Park Service lands. Taking, possessing, or disturbing of Federally listed species is prohibited on NPS lands (36 CFR 2.1, 2.2, and 2.3). 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: Federated States of Micronesia and Commonwealth of the Northern Mariana Islands (U.S. Trust Territories of the Pacific Islands) DESIGNATED STATUS: Endangered ADMINISTRATIVE AGENCY: Department of Resources and Development STATE STATUTES: Title 45; Fish, Shellfish, and Game; Chapter 5; Endangered Species Act (of Trust Territories) INTERNATIONAL STATUSES, TREATIES, AND AGREEMENTS: None. ECONOMIC STATUSES: This species is not directly utilized by humans, however, it may aid in the control of insects within the native forest ecosystem and in or about gardens. There also may be some esthetic value associated with this species in reference to recreational bird watchers. 70/06/02:35 FR 08491/08495 - Original listing; Endang (Nauru ssp) 70/12/02:35 FR 18319/18322 - Listing of species 76/30/09:41 FR 43340/43358 - Republication of list 85/02/22:50 FR 29901/29909 - Five year review Status - 2
     

HABITAT ASSOCIATIONS

HABITAT - TERRESTRIAL TERRESTRIAL INLAND AQUATIC LAND USE - Residential Cropland and Pasture Orchards, Groves, Vineyards, Nurseries, Evergreen Forest Land Forested Wetland Nonforested Wetland NATIONAL WETLAND INVENTORY CODES NWI NWICLS NWIMOD NWISPEC Riverine, intermittent FL6 Riverine, upper perennial FL6 Riverine, lower perennial FL6 Riverine, tidal FL6 Palustrine SS3 0FO Palustrine FL6 Palustrine EM6 Palustrine EM5 Estuarine, intertidal SS4 Estuarine, intertidal SS3 Estuarine, intertidal RS3 Estuarine, intertidal FO7 Estuarine, intertidal FO4 Estuarine, intertidal FO3 Estuarine, intertidal FL6 Estuarine, intertidal EM1 COMMENTS ON HABITAT ASSOCIATIONS - The various Pacific island populations have adapted to different habitat types. On Guam and apparently Pagan, reed warblers were restricted to wetland habitats, while populations elsewhere range more extensively into brush lands and forest (01,05,06,19). On Guam the species was restricted to cane thickets and adjacent areas in and near fresh and brackish water marshes (01). The small population on Pagan was reported to reside at one time in and about wetland vegetation surrounding two small ponds found on the island (19). On Saipan, reed warblers occur in all types of forest habitat as well as the dense vegetation around wetlands (05,19,24). The bird prefers the dense and varied vegetation surrounding a wetland, rather than the monotypic stands of Phragmites or Scirpus within the marsh (05,12,24). Outside of wetlands the reed warbler utilizes both mixed as will as the monotypic stands of introduced Leucaena leucocephala that grow over much of the island (05). On Agiguan there are no wetlands, and the reed warbler is found in second growth forests that are heavily grazed by feral goats (05). The understory is almost completely open due to excessive grazing, and birds forage above the grazing line in the dense foliage of the trees. In the Caroline Islands the reed warbler is typically an edge species, but is highly adaptable and can be found in a variety of habitats, from mature native forest of upper elevations to scrubby open fields of the lowlands; small populations can even be found on Habitat Associations - 1 tiny offshore islets. It is most fond of semi-open, lowland scrub, particularly near heavily overgrown taro patches and other wetlands bordered by rank stands of Phragmites. The reed warbler commonly utilizes mixed growth at the edge of clearings. Though not normally found in large stands of mangrove, the bird frequents mangrove edges, especially where there is an abundance of rank grass or other herbaceous cover nearby. The bird is not averse to human habitation and is commonly found within villages and towns; garbage dumps are favorite habitats. Though normally found in dense vegetation near the ground, the reed warbler also utilizes the mid- and even the upper canopy levels of larger trees (02,04,06,13,14,16). In the Caroline Islands the reed warbler is found on amazingly small offshore Atolls and islets. On Ant Atoll the bird occurs on Wolouna, Nikalap Aru, and probably most other islets of the Atoll (06, 14). Vegetation on the atoll consists primarily of native strand bushes, trees, and planted coconuts. Wolouna is a tiny, isolated islet with less than a hectare of native strand vegetation. Nikalap Aru is covered predominantly by coconuts. Here, the reed warbler prefers native broadleaf trees and bushes such as Morinda, Cordia, Calophyllum, and others (06). On Pohnpei (Ponape), Coultas considered the reed warbler to be a bird of small bushes, open country, and grasslands, but not of true forest or high elevations (04). Marshall reported that the species was common in open country or trees bordering grasslands, but it was limited to grass or fern areas which have contrasting growth, with clumps of cane or numerous bushes and grasses or fern openings (13). He did not find the bird in pure short grass or fern openings. The reed warbler generally does not use the extensive forests of the interior, though a few can be found at these upper elevation forests (06). Most individuals in these interior forests were generally found in dense Pandanus or Hibiscus thickets near a stream, or in broadleaf forests, but not in the extensive montane palm forests (06). On Truk, the reed warbler is found in Phragmites swamps, dense vegetation, gardens, taro patches, and second growth forests (02,06, 13,16). Marshall believed that the reed warbler utilized the forests of Truk because the woods are much dissected by small openings (13). On Moen, birds can often be found in the short mowed grass of the antenna field (06). Habitat Associations - 2
                                (DRAFT) - Food Habits
                         Species WARBLER, REED, NIGHTINGALE
                                Species Id ESIS101003
                                   Date 14 MAR 96



FOOD HABITS

TROPHIC LEVEL - OMNIVORE LIFESTAGE FOOD FOOD PART General Molluscs General Reptilia General Arthropods Food Habits - 1
                         (DRAFT) - Environment Associations
                         Species WARBLER, REED, NIGHTINGALE
                                Species Id ESIS101003
                                   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: Reefs G Coastal Features: Vegetated offshore islands Environment Associations - 1
                               (DRAFT) - Life History
                         Species WARBLER, REED, NIGHTINGALE
                                Species Id ESIS101003
                                   Date 14 MAR 96



LIFE HISTORY

FOOD HABITS: The nightingale reed warbler feeds primarily on insects, which are picked or gleaned from the foliage (01,04). Four stomachs examined from Guam contained insects and larvae (22). Marshall listed food items from the Saipan population as lizards, snails, spiders, and insects (12). He reported the reed warbler gathered its prey from the ground. Coultas, in his observations of the bird at Ponape, relates that he was able to locate the warbler by listening for the "snapping of the mandibles as the bird is catching food" (04). During USFWS surveys, reed warblers were found to forage primarily in dense brushy or grassy vegetation near the ground, in freshly mowed grass of the antenna field on Moen, and in the upper canopy as well (05,06). On Truk, a reed warbler was observed following and foraging behind bristle-thighed curlews (Numenius tahitiensis). As the curlews uncovered clumps of mowed grass with a flick of their long bill, the reed warbler would opportunistically take exposed prey (06). HOME RANGE/TERRITORY: The reed warbler is generally found alone or in pairs and presumably maintains a territory. Details on size or seasonal variations of territory is unknown. PERIODICITY: The species is diurnal and no information is available on other seasonal activities. MIGRATION PATTERNS: The reed warbler is nonmigratory and no other information is available on local movement patterns. COVER/SHELTER REQUIREMENTS: Most reed warbler populations are highly adaptable, occupy a variety of habitat types, and appear to require no special habitat for survival. Though most reed warbler populations are partial to vegetation near wetlands, the species occupies most types of second growth forest, mixed grass and brush lands, and gardens. A notable exception is the population that was once found on Guam. The bird here was restricted almost exclusively to wetlands, particularly Agana marsh, which is dominated by the coarse grass Phragmites karka (01). The loss of wetlands on Guam might have contributed to the loss of this population (10). The population on Pagan might also have been restricted to wetland habitat, much as the population on Guam once was (19). REPRODUCTIVE SITE REQUIREMENTS: The nest is a crude, bulky structure with an outer cover made of coarse grasses, weed stems, and leaves. The inner lining of the nest is usually of fine grasses (02). Nests have been located in a variety of situations including; cane swamps, taro plants, breadfruit trees, coconut trees, ivory nut palms, and mango trees (02,09). Nests Life History - 1 (DRAFT) - Life History Species WARBLER, REED, NIGHTINGALE Species Id ESIS101003 Date 14 MAR 96 ranged from about 2-14 meters above the ground. Most nests are located in trees with dense foliage. Nests are well concealed and are often in the center of a cluster of branches so that they are supported on all sides (02). On Ponape, Coultas found nests placed at low elevations in bushes (04). REPRODUCTIVE CHARACTERISTICS: Nesting has been recorded all months of the year except January and March, which indicates active nesting throughout the year (01,02, 26). The normal clutch is two eggs. Eggs are white, occasionally washed with a greenish tint or slight buff, and are spotted with lavender, chestnut, and black (02). What is believed to be a courtship display has been observed on Truk and Ponape islands (06). In both cases one bird (presumably the female) remained quietly on a perch while the male sang constantly and flew back and forth repeatedly to the female. The song given was a soft warble, not the loud song typically heard. The male flew only 30-40 centimeters away on each back-and-forth trip, and each time he approached the female, she would parry his approach with her bill. PARENTAL CARE: No information is available on this subject with the exception of one report of full-grown young being fed by adults (13). POPULATION BIOLOGY: No information is available on this subject. SPECIES INTERRELATIONSHIPS: No information is available on this subject. OTHER LIFE HISTORY DESCRIPTORS: The reed warbler is a vocal species that voices a loud and varied warbling song interspersed with harsh chattering or clicking notes. Calls often consist of short "chucks" or short segments of the song (05,06). Marshall records a call that he described as a dry short rattle (13). The song is given all through the day, and individuals may spend hours singing (04,13). Life History - 2
                           (DRAFT) - Management Practices
                         Species WARBLER, REED, NIGHTINGALE
                                Species Id ESIS101003
                                   Date 14 MAR 96



MANAGEMENT PRACTICES

RESULT MANAGEMENT PRACTICE Beneficial Developing/maintaining/protecting wetlands Beneficial Controlling/Restricting Mining Beneficial Reforestation Beneficial Transplanting wild animals Beneficial Controlling/Removing Exotic Vertebrates Adverse Artillery/Explosions Existing Artillery/Explosions Adverse Predation Existing Predation Adverse Surface Mines Existing Surface Mines Adverse Soil compaction by heavy equipment in mine areas Existing Soil compaction by heavy equipment in mine areas Adverse Draining wetlands, marshes, ponds, lakes Existing Draining wetlands, marshes, ponds, lakes Adverse Exotic/Feral/Introducted Species Existing Exotic/Feral/Introducted Species Adverse Grazing Existing Grazing Adverse Vegetation Composition Changes Existing Vegetation Composition Changes Adverse Fire Existing Fire COMMENTS ON MANAGEMENT PRACTICES - The original listing of the nightingale reed warbler is based on the status of the Nauru Island subspecies, A. l. rehsei (25). This subspecies is restricted to the single small island of Nauru, which has undergone considerable destruction by phosphate mining and, from 1943-45, by military operations. Because of these threats the reed warbler on Nauru was thought to be endangered (08). This population is apparently still extant (03). Other populations which are rare and may be threatened include; A. l. luscinia on Guam and Alamagan, A. l. nijoi on Agiguan, and A. l. yamashinae on Pagan (05,19). The population on Guam is believed to have become extinct in the late 1960's (10,23). This population has apparently always been rare (01) and the cause for its decline is not known. Possibly a loss of wetland habitat brought about the birds final demise (10). Possibly the introduced brown tree snake (Boiga irregularis) exterminated the reed warbler on Guam through predation. Little is known about the reasons for low numbers on Agiguan, Alamagan, and Pagan. These populations were possibly always rare. Recent studies on Agiguan found the species to be very rare and possibly endangered due to destruction of vegetation by feral goats (05,19). On a recent visit to Pagan, no reed warblers were found and the birds preferred wetland habitat was found to be destroyed by the grazing of introduced ungulates and a recent volcanic eruption (19). No information is available on the population on Alamagan. Management Practices - 1 (DRAFT) - Management Practices Species WARBLER, REED, NIGHTINGALE Species Id ESIS101003 Date 14 MAR 96 UNAPPROVED PLAN: No recovery plan has been initiated and no target date has been established. Most populations of reed warblers are not biologically considered to be Endangered, and few or no recovery actions are required. Known exceptions include populations on Guam, Agiguan, Pagan, and possibly Nauru. The Guam population is now considered to be extinct, though the same subspecies is still found commonly on Saipan. The wetland habitat in which the reed warbler was once found on Guam (Agana Marsh) should be preserved. It may eventually be possible to translocate birds from Saipan to Guam, though further studies are needed on Guam before such an attempt is made. The population on Agiguan may be suffering from habitat destruction from excessive browsing by feral goats, and control of goats is recommened on this island. Likewise, the population on Pagan (which may be extinct) may be suffering from habitat loss due to the grazing of feral ungulates. Control or removal of these feral animals would allow vegetation to recover. On Nauru the primary threat to the reed warbler is thought to be destruction of habitat by phosphate mining. Controlling mining to reduce losses of habitat is recommended. Before recommendations can be made for certain remote populations, studies are needed to determine current statuses. These include populations on Alamagan, Woleai, Lomotrek, Lukunor, Nukuoro, and Nauru. Management Practices - 2
                                   (DRAFT) - References
                            Species WARBLER, REED, NIGHTINGALE
                                  Species Id ESIS101003
                                      Date 14 MAR 96



     

References

***** REFERENCES FOR ALL NARRATIVES EXCEPT N-OCCURRENCE ***** 01 Baker, R.H. 1951. The avifauna of Micronesia, its origin, evolution, and distribution. Univ. of Kansas Publ., Mus. Nat. Hist., 3:1-359. 02 Brandt, J.H. 1962. Nests and eggs of the birds of the Truk Islands. Condor 64:416-437. 03 Burner, P.L. Pers. comm. 1985. Math and Nat. Sci. Dept.; BYU; 55-220 Kulanui St.; Laie, HI. 96762. 04 Coultas, W.F. 1930-31. Whitney south sea expedition journals. Amer. Mus. Natur. Hist. Unpublished. 05 Engbring, J., F.L. Ramsey, and V.J. Wildman. 1986. Micronesian forest bird survey 1982: Saipan, Tinian, Agiguan, and Rota. USFWS, OBS. 06 Engbring, J., F.L. Ramsey, and V.J. Wildman. In prep. Federated states of Micronesia forest bird survey 1983-84: Kosrae, Pohnpei, Truk, and Yap. USFWS. 07 Finsch, O. 1883. On a new reed-warbler from Nawado or Pleasant Island, in the western Pacific. Ibis, 5th Ser., 1:142-144. 08 Greenway, J.C. 1967. Extinct and vanishing birds of the world. Dover Publ., Inc.; New York, NY. 09 Hartert, E. 1900. The birds of Ruk in the central Carolines. Novit. Zool., 7:1-11. 10 Jenkins, J.M. 1983. The native forest birds of Guam. Ornit. Mono. No. 31. 61 pp. 11 Kittletz, F.H., von. 1835. Uber einige noch unbeschriebene Vogel von der Insel Luzon, den Carolinen und den Marianed. Mem. Acad. Imp. Sci. St. Petersbourg, 2:1-9, pls. 1-10. 12 Marshall, J.T., Jr. 1949. The endemic avifauna of Saipan, Tinian, Guam, and Palau. Condor 51:200-221. 13 Marshall, J.T., Jr. 1955-56. Field notes from Micronesia. Unpublished. 14 Marshall, J.T., Jr. 1957. Atolls visited during the first year of the Pacific islands rat ecology project. Atoll Res. Bull. No. 56: 1-11. 15 Mayr, E. 1945. Birds of the southwest Pacific. Macmillan Co., New York, NY. 16 McElory, L.P. 1945. Field notes from Truk. Unpub. 17 Pratt, H.D., P.L. Bruner, and D.G. Berrett. 1979. Americas unknown avifauna; the birds of the Mariana Islands. American Birds 33(3):227-235. 18 Pratt, H.D., P.L. Bruner, and D.G. Berrett. In press. A field guide to the birds of Hawaii and the tropical Pacific. Princeton Univ. Press, Princeton. 19 Pratt, T.K. 1984. Nightingale reed-warbler surveys and investigations. Pittman-Robertson Job Progress Reports FY 1984, CNMI Div. of Fish and Wildlf. Pp 113-118. Unpubl. 20 Quoy, J.R.C., and Gaimard, P.J. 1830-35. Voyage de decouevrtes de la corvette l'astrolabe, execute par ordre du roi, pendant les annees 1826, 1827, 1828, et. 1829 sous le commandement de M.J. Dumont D,urville. Paris. Zoologie: xlx and 268 pp. References - 1 (DRAFT) - References Species WARBLER, REED, NIGHTINGALE Species Id ESIS101003 Date 14 MAR 96 21 Deleted. 22 Seale, A. 1901. Report of a mission to Guam. Occas Pap. Bernice P. Bishop Mus. 1:17-128. 23 U.S. Army Corps of Engineers. 1979. Ornithological survey of wetlands in Guam, Saipan, Tinian, and Pagan. Corps of Engineers Pacific Ocean Division: A22-A26. 24 U.S. Army Corps of Engineers. 1981. Detailed project report and environmental statements, Susupe-Chalan Kanoa flood control study. Corps of Engineers Pacific Ocean Division: A22-A26. 25 U.S. Fish and Wildlife Service. 1970. Conservation of Endangered Species and other fish or wildlife. Federal Register 35(106): 08491/08498. 26 Yamashina, Y. 1932. On a collection of birds eggs from Micronesia. Tori, 7:393-413. ***** REFERENCES FOR N-OCCURRENCE NARRATIVE ONLY ***** 01 Baker, R.H. 1951. The avifauna of Micronesia, its origin, evolution, and distribution. Univ. of Kansas Publ., Mus. Nat. Hist., 3:1-359. 02 Engbring, J., F.L. Ramsey, and V.J. Wildman. In prep. Federated states of Micronesia forest bird survey 1983-84: Kosrae, Pohnpei, Truk, and Yap. USFWS. 03 Jenkins, J.M. 1983. The native forest birds of Guam. Ornit. Mono. No. 31. 61 pp. 04 Marshall, J.T., Jr. 1957. Atolls visited during the first years of the Pacific Islands rat ecology project. Atoll Res. Bull. No. 56:1-11. 05 Marshall, M. 1975. The natural history of Namoluk Atoll, eastern Caroline Islands. Atoll Res. Bull. No. 189:1-53. 06 U.S. Army Corps of Engineers. 1979. Ornithological survey of wetlands in Guam, Saipan, Tinian, and Pagan. Corps of Engineers Pacific Ocean Division. 202 pp. References - 2