Micronesian Megapode

_Megapodius La Pérouse_ Gaimard, Bull. Gén. Univ. Annon. Nouv.

Sci., 2, 1823, 451. (Type locality, Tinian, Archipel des

Mariannes.)

_Megapodius La Pérouse_ Quoy and Gaimard, Voy. "Uranie," Zool.,

1824, pp. 127, 693, Atlas, pl. 33 (Tinian); _idem_, Ann. Sci. Nat.

Paris, 6, 1825, p. 149 (Tinian).

_Megapodius La Pérousii_ Quoy and Gaimard, Voy. "Uranie," Zool.,

1824, p. 127, pl. 33 (Tinian); Wagler, Isis, 1829, p. 735 (Tinian,

Guam, Rota); Gray, Cat. Birds Trop. Is. Pacific Ocean, 1859, p. 46

(Tinian); Oustalet, Ann. Sci. Nat., (6), art. 2, 1881, pp. 63,

138, 140, 143, 171, 175, 176, 177 (Tinian); _idem_, Le Nat., 1889,

p. 261 (Mariannes); _idem_, Ann. Sci. Nat., Zool., 11, 1891, p.

196 (Tinian, Seypan, Pagon).

_Megapodius La Peyrouse_ Lesson, Man. d'Ornith., 2, 1828, p. 221

(Tinian); _idem_, Compl. de Buffon, 2d ed., 2, Ois., 1838, p. 255

and accompanying plate (Tinian).

_Megapodius laperousii_ Lesson, Traité d'Ornith., 1831, p. 478

(Mariannes); Gray, Hand-list Birds, 2, 1870, p. 256 (Marian);

Ogilvie-Grant, Hand-book Game-birds, 2, 1897, p. 183 (Marianne);

Dubois, Syn. Avium, 2, 1904, p. 787 (Mariannes); Lister, Proc.

Zool. Soc. London, 1911, p. 757 (Marianne).

_Megapodius Lapeyrousii_ Hartlaub, Journ. f. Ornith., 1854, p. 167

(Mariannen).

_Megapodius La Peyrousii_ Reichenbach, Tauben, 1861, p. 5

(Marianen).

_Megapodius la-perousi_ Gray, Proc. Zool. Soc. London, 1864, p. 43

(Guam, Botta, Tinian).

_Megapodius laperousi Giebel_, Thes. Ornith., 2, 1875, p. 547

(Marianae); Seale, Occ. Papers Bernice P. Bishop Mus., 1, 1901, p.

39 (Marianas); Safford; Osprey, 1902, p. 68 (Tinian); _idem_, The

Plant World, 7, 1904, p. 265 (Tinian); _idem_, Contr. U. S. Nat.

Herb., 9, 1905, p. 78 (Rota, Saipan, Pagan, Agrigan); Schnee,

Zeitschr, f. Naturwisch., 82, 1912, p. 467 (Marianen); Prowazek,

Die deutschen Marianen, 1913, pp. 47, 101 (Marianen); Linsley,

Guam, Rec., vol. 12, no. 8, 1935, p. 249 (Rota, Saipan, Pagan,

Agrigan).

_Megapodius perousei_ Finsch, Journ. Mus. Godeffroy, 8, 1875, p.

30 (Marianen); Wiglesworth, Abhandl. und Ber. Zool. Mus. Dresden,

no. 6, 1890-1891 (1891), p. 58 (Guam, Botta, Tinian, Pagon).

_Megapodius laperousii_ Ogilvie-Grant (part), Cat. Birds British

Mus., 22, 1893, p. 460 (Marianne).

_Megapodius la perousei_ Oustalet, Nouv. Arch. Mus. Hist. Nat.

Paris, (3), 8, 1896, p. 26 (Saypan, Pagan, Rota, Agrigan, Tinian).

_Megapodius laperouse_ Hartert, Novit. Zool., 5, 1898, p. 61

(Saipan, Tinian, Rota, Guam).

_Megapodius laperousei_ Finsch, Sammlung wissensch. Vorträge, 14

ser., 1900, p. 660 (Marianen); Prowazek, Die deutschen Marianen,

1913, p. 87 (Marianen).

_Megapodius lapeyrouse_ Matschie, Journ. f. Ornith., 1901, p. 113

(Guam, Saipan).

_M[egapodius] lapeyrousei_ Reichenow (part), Die Vögel, 1, 1913,

p. 273 (Mariannen).

_Megapodius laperousei laperousei_ Kuroda, in Momiyama, Birds

Micronesia, 1922, p. 40 (Guam, Saipan, Rota, Tinian, Pagan,

Agrigan).

_Megapodius lapérouse lapérouse_ Mathews, Syst. Avium

Australasianarum, 1, 1927, p. 16 (Marianas); Takatsukasa, Birds

Nippon, vol. 1, pt. 1, 1932, p. 6, pl. 4, 5 (Marianne); Yamashina,

Tori, 7, 1932, p. 411 (Pagan Agrigan); Hand-list Japanese Birds,

rev., 1932, p. 198 (Marianas); Peters, Check-list Birds World, 2,

1934, p. 7 (Marianne Islands); Yamashina, Tori, 10, 1940, p. 679

(Assongsong); Amadon, Amer. Mus. Novit., no. 1175, 1942, p. 9

(Asuncion, Saipan, Guam); Mayr, Birds Southwest Pacific, 1945, p.

286 (Marianas).

_Megapodius laperousi laperousi_ Bryan, Guam Rec., vol. 13, no. 2,

1936, p. 15 (Guam).

_Megapodius la pérouse la pérouse_ Hand-list Japanese Birds, 3d

ed., 1942, p. 223 (Assongsong, Agrigan, Pagan, Almagan, Saipan,

Tinian, Agiguan, Rota, Guam).

_Geographic range._--Micronesia: Mariana Islands--Asuncion,

Agrihan, Pagan, Almagan, Saipan, Tinian, Agiguan, Rota, Guam.

Probably extinct on Saipan, Tinian, Rota, Guam.

_Characters._--Adult: Resembles _M. l. senex_, but crown slightly

darker gray; back, wing-coverts and scapulars more heavily washed

with olivaceous-brown; mantle less slate; underparts paler and

more brownish, especially belly. (Note--The specimens examined

from the Marianas are old and rather worn in appearance.)

_Measurements._--Two males measure: wing 180?, 182?; tail 62, 63;

tarsus 55, 55; three females: wing 181?, 181?; tail 55, 59, 62;

tarsus 54, 54, 56. Takatsukasa (1932: 10) lists the following

measurements: males--wing, 155-169; tail, 54-62; culmen, 22.5-24;

tarsus, 51-54; females--wing, 158-170; tail, 56-65; culmen, 23-25;

tarsus, 50-55.

_Specimens examined._--Total number, 10 (3 males, 4 females, 3

unsexed), as follows: Mariana Islands, AMNH--Guam, 1 (June

6)--Saipan, 6 (1895)--Asuncion, 3 (1904).

_Nesting._--Concerning the nest of the Micronesian Megapode in the

Marianas, Takatsukasa (1932:10) writes: "The nest is a large mound

of sand mixed with grass and is made in the wooded land along the

seashore. The mound is over one hundred feet in circumference and a

few yards in height, and is built by the united efforts of the male

and female, by scratching sand and grass with their large feet. The

eggs are laid in this mound and they are hatched by the heat of the

sun and that produced by the fermentation of the grass, and they

are never hatched by the parent birds. The egg is of a pale brown,

but always stained by nesting materials."

Takatsukasa (1932:11) quotes Oustalet as follows: "Specimens

collected by Mr. Marche have proved that the breeding season of La

Pérouse's Megapode is rather long, like the other species of the

same family, it begins to breed in January or February and ends in

June. Accordingly, in this period the eggs just laid, the chicks,

the young and adult can be seen at one place, but Mr. Marche did

not obtain any egg." Hartert (1898:61) records a chick taken on

July 17. Yamashina (1932a: 411) records eggs taken in 1931 as

follows: two eggs from Pagan, February 17; three eggs from Pagan,

May 15; four eggs from Agrihan, June 24. The breeding season for

both of the incubator birds, _M. l. senex_ and _M. l. lapérouse_,

is apparently from about January to August.

_Remarks._--The Micronesian Megapode was first taken in the Marianas by

the expedition of the Uranie. Bérard, a member of the expedition,

obtained the bird at Tinian in December, 1820. Quoy and Gaimard

(1824:27), who studied the birds of this expedition, reported that

according to native tradition the species was in former times widely

distributed in the Marianas and domesticated by the ancient people of

the islands, but that in 1819 and 1820 the birds were not numerous on

Tinian and not found on Guam and Rota. Marche (in Oustalet, 1896:27)

obtained twenty-three birds at Saipan, one from Rota, two from Agrihan,

and five from Pagan in 1887, 1888, and 1889; it is apparent that Quoy

and Gaimard missed the bird at Rota. Marche was of the opinion that the

megapodes were never domesticated and that they would probably not last

much longer at Saipan and Rota owing to the incessant hunting for them

by the natives. As in the Palaus, the natives apparently prefer the eggs

to the adults. The latest collections of these birds in the Marianas

were made by the Japanese. Yamashina (1932:411) obtained eggs in 1931 at

Pagan and Agrihan, and again in 1940. He (1940:679) reported birds at

Assongsong (Asuncion). Takatsukasa (1932:12) says, "A collector, working

for Marquis Yamashina and myself, lately procured many specimens in

Saipan and Pagan." Linsley (1935:249, 250) in searching for the megapode

at Guam found little evidence of the birds. He interviewed people

between the ages of forty-five and eighty and only two or three

remembered seeing the bird. He said he saw one or two cross the road;

but I suspect that they might have been rails (_Rallus owstoni_).

Service personnel stationed at various islands in the Marianas during

the late war have not reported the birds. The NAMRU2 party found no

trace of the bird at Guam or Rota. Joe T. Marshall, Jr. (1949:203), did

not find the bird at Saipan, Tinian, or Guam in 1945. Its status on

Agiguan is unknown; isolated Japanese troops present on this small

island from the time of the American invasion (1944) until the armistice

(1945) may have used the birds for food and depleted the population

seriously. At present the birds apparently still occur on islands in the

northern Marianas. It seems that if these birds are to survive, they

must be given some protection.

_Evolutionary history._--The genus _Megapodius_ consists, according to

Peters (1934:1-7), of nine species which are distributed through the

islands from the Philippines and Borneo to Australia and Melanesia.

These have been redesignated under three specific names by Mayr (1938).

Outlying forms occur in the Nicobar Group to the west and in Tonga

(Niuafou Island) in the east and in the Palaus and Marianas to the

extreme northeast. Lister (1911:757) is of the opinion that the

megapodes may have reached these outlying islands by having been

transported by the natives, by whom the eggs were highly valued as food.

This idea is also maintained by Rutland (1896:29-30) and Christian

(1926:260). Possibility and not factual evidence support this

hypothesis. From their seeming ancestral stocks, _M. pritchardii_ Gray

of Niuafou Island and _M. lapérouse_ of Micronesia are remarkably

distinct which may indicate their early arrival at these islands and

subsequent change from their ancestral stocks.

Like _M. pritchardii_, the Micronesian species is smaller than its

relatives to the southwest and has short, rather rounded wings, although

its feet are heavily built whereas those of _M. pritchardii_ are lightly

constructed. In comparing these birds with the species of megapode found

in the Philippines, Celebes and Melanesia, it seems that both _M.

pritchardii_ and _M. Lapérouse_ are closely related to the widespread

species, _M. freycinet_, which may have been ancestral to both. The

differences between _M. prichardii_ and _M. lapérouse_ indicate that

they represent independent invasions. Nevertheless these megapodes may

have had a wider range in Oceania in former times; man may have

eliminated the birds from some islands by using their eggs. The eggs are

laid in conspicuous mounds which are easily found by man.

_M. lapérouse_ differs from _M. freycinet_ of New Guinea and other parts

of Melanesia and the Philippines; its small size, short wing and pearl

gray head are distinctive characters. It shows greatest resemblance to

the subspecies in Celebes (_M. f. gilberti_) in size and to the

subspecies in the Moluccas (_M. f. freycinet_) in coloring; possibly

_M._ _lapérouse_ represents stock from one of these regions. Apparently

the group as a whole evolved from a center of dispersal in the New

Guinea area. Mayr (1942b:167) regarded all the species of _Megapodius_

as belonging to one polytypic species, except _M. lapérouse_ and _M.

pritchardii_, which are allopatric species.

=Coturnix chinensis lineata= (Scopoli)

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