Gallinule

_Gallinula orientalis_ Horsfield, Trans. Linn. Soc. London, 13,

1821, p. 195. (Type locality, Java.)

_Gallinula chloropus indicus_ Hand-list Japanese Birds, rev.,

1932, p. 197 (Babelthuap); Takatsukasa and Yamashina, Dobutsu.

Zasshi, 44, 1932, p. 266 (Pelew, Coror).

_Gallinula chloropus indica_ Hand-list Japanese Birds, 3d ed.,

1942, p. 221 (Babelthuap).

_Gallinula chloropus_ subsp. Baker, Smithson. Misc. Coll., vol.

107, no. 15, 1948, p. 49 (Peleliu, Angaur).

_Geographic range._--Malaysia from southern Malay Peninsula to

Celebes. In Micronesia: Palau Islands--Babelthuap, Koror, Peleliu,

Angaur.

_Characters._--Adult: Resembles _G. c. indica_ Blyth, _G. c.

lozanoi_ Lletget and _G. c. guami_ Hartert, but smaller and paler;

upper wing-coverts less olivaceous-brown and more slate-colored;

back, rump, and scapulars less richly washed with

olivaceous-brown. Resembles _G. c. orientalis_ from Java in size,

but much paler.

_Measurements._--An unsexed adult bird from Angaur measures: wing,

150; bill from rictes, 27.1; bill from nostril, 13.4; tarsus, 46.

_Specimens examined._--Total number, 3 (2 males, 1 unsexed) from

Palau Islands, USNM--Angaur (Sept. 21).

_Remarks._--Owing to the lack of sufficient material, I am unable to

determine the exact status of the resident gallinule in the Palau

Islands. On the basis of a single, unsexed adult and two immatures there

is not very much that can be said. The adult is smaller and paler than

_G. c. indica_, _G. c. lozonoi_, and _G. c. guami_. It resembles

specimens of the subspecies _G. c. orientalis_ in size but is also paler

than the skins of this race which I have examined. It seems closest to

this latter subspecies to which I tentatively refer it. If it is closest

to this subspecies, it probably reached Palau from the Celebean region,

rather than from the Philippines or some other route. Whether specimens

taken by the Japanese at Babelthuap and Koror are _G. c. indica_ is

questionable, unless the skins were from migrants which may visit Palau

from the west or northwest. The Hand-list of Japanese Birds (Hachisuka

_et al._, 1942:177) records _G. c. indica_ from the Bonin Islands.

The three Gallinules were taken by the NAMRU2 party at fresh and

brackish water swamps at Angaur on September 21, 1945. Several

Gallinules were seen in the area and several were observed also at

Peleliu Island. One of the immatures was just growing its wing feathers,

indicating that the birds must breed in the Palau Islands.

=Gallinula chloropus guami= Hartert

The Avifauna of Micronesia, Its Origin, Evolution, and Distribution · 第 200 / 507 题