New birds from the Philippines

LIBRARY OF THE

UNIVERSITY OF ILLINOIS

AT URBANA-CHAMPAIGN

590.5
FI

v. 42
cop. 3

NATURAL HISTORY.

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FIELDIANA . ZOOLOGY

Published by
CHICAGO NATURAL HISTORY MUSEUM

Volume 42 December 20, 1957 No. 2

Philippine Zoological Expedition

1946-1947

NEW BIRDS FROM THE PHILIPPINES

Austin L. Rand

Chief Curator, Department of Zoology
AND

D. S. Rabor

Field Associate, Department of Zoology

Department of Biology, Silliman University

The following novelties are based largely on material from field
work of the junior author, carried on under the auspices of Chicago
Natural History Museum and Silliman University over a number
of years. A grant from the Guggenheim Foundation enabled Dr.
Rabor to come to the United States for a year, and a Fellowship
from Chicago Natural History Museum enabled him to study in
the Museum during the summer of 1957. We are indebted to Dr.
C. Vaurie and Mr. E. Thomas Gilliard of the American Museum
of Natural History and Mr. H. Deignan of the United States
National Museum for the loan of comparative material.

Ptilocichla mindanensis fortichi, new subspecies

Type. — Chicago Natural History Museum no. 223,408, from
Cantaub, Sierra Bullones, Bohol, Philippine Islands. Adult male
collected April 17, 1955, by D. S. Rabor.

Diagnosis. — Like P. m. minuta of Samar but differs in the fol-
lowing characters: feathers of crown and upper back with black
(not dark brown) edgings; lower back and rump mostly black (not
dark brown) ; streaking of upper parts whiter and more conspicuous
(less tinged with fulvous); edgings of feathers of under parts,
especially on flanks, darker and more blackish.

Library of Congress Catalog Card Number: 58-7935
No. 833 13

FP 9 A 1Q57

.

14 FIELDIANA: ZOOLOGY, VOLUME 42

Wing.— <? (9) 68-76 (av. 71.9); 9 73.5 mm.

Range. — Bohol Island.

Remarks. — Named in honor of the late Ismael Fortich of Sierra
Bullones for his interest in and aid to the expedition in the field.

The name for this species is not basilanica, but mindanensis
Blasius (see Rand, 1955, Auk, 72: 210).

Stachyris nigrocapitata boholensis, new subspecies

Type. — Chicago Natural History Museum no. 223,454, from
Cantaub, altitude 2,450 feet, Sierra Bullones, Bohol, Philippine
Islands. Adult male collected April 19, 1955, by D. S. Rabor.

Diagnosis. — Like S. n. nigrocapitata of Samar, but differs in the
reduction in length and width of the dark chestnut stripe on each
side of the throat; in the clear saffron yellow chin and throat (not
with distinct streaks of dark chestnut); in the much reduced dark
chestnut patch behind each eye; and in lacking a chestnut tinge on
the nape.

Wing.— & (3) 70-72.5 (av. 70.8); 9 (5) 65-70 (av. 67.5) mm.

Range. — Bohol Island.

Ficedula hyperythra malindangensis, new subspecies

Type. — Chicago Natural History Museum no. 227,483, from
Gandawan, altitude 4,500-5,500 feet, Mt. Malindang, Zamboanga
Peninsula, Mindanao, Philippine Islands. Adult male collected
April 19, 1956, by D. S. Rabor.

Diagnosis. — Like F. h. nigrorum of Negros but differs in the
following characters: lores, side of head, and edge of chin and
throat more intensely black; ochraceous buff of under parts extending
farther posteriorly; and under tail coverts ochraceous buff.

Wing.— & (12) 59-64 (av. 62.3); 9 (5) 59-60 (av. 59.3) mm.

Range. — Mt. Malindang from 3,500 to 7,450 feet.

Rhinomyias ruficauda boholensis, new subspecies

Type.— Chicago Natural History Museum no. 223,571, from
Cantaub, Sierra Bullones, Bohol, Philippine Islands. Adult male
collected May 10, 1955, by D. S. Rabor.

Diagnosis. — This subspecies is the lightest-colored above. It
is like ocularis of Sulu and zamboanga in having little ruddy brown
in the back, and like zamboanga and samarensis in having an obscure
breast band.

RAND AND RABOR: NEW PHILIPPINE BIRDS 15

*/ Compared with samarensis this new race has lighter, rather

■z bright, almost olive brown upper parts (not rich ruddy brown), and

whiter under parts with brownish olive breast band less distinct.

Compared with zamboanga, this new race is brighter and paler olive

brown above.

Wing.— <? (10) 74-80 (av. 75.7); 9 70, 70, 72 mm.
Range. — Bohol Island.

Rhinomyias ruficauda zamboanga, new subspecies

Type. — Chicago Natural History Museum no. 215,368, from
Diway, Dabiak, Zamboanga Peninsula, Mindanao, Philippine
Islands. Adult male collected April 29, 1952, by D. S. Rabor.

Diagnosis. — The darkest and dullest above of any of the Philip-
pine races, with a very light brownish breast band. This race
differs from the adjacent ruficauda of Basilan as follows: darker and
duller (more olive, less red-brown) above; the tail darker rufous;
less gray in the face; the breast not clear gray but with a faint olive
brown tinge; and the mandible pale brown (not mostly black).

Compared with samarensis of Samar and eastern Mindanao,
this new race differs chiefly in the darker, duller brown (less red-
brown) upper parts and darker rufous tail.

Wing.— <? (5) 75-78 (av. 76.4); 9 (6) 71-77 (av. 73.5) mm.

Range. — Zamboanga Peninsula of western Mindanao.

Remarks. — The type locality of mindanensis Mearns is Pantar,
near Lake Lanao, and the name is a synonym of samarensis.

Pachycephala philippinensis siquijorensis, new subspecies

Type. — Chicago Natural History Museum no. 217,533, from
Poo, Lazi, Siquijor, Philippine Islands. Adult male collected June 1,
1950, by D. S. Rabor.

Diagnosis. — A yellow-bellied, green-backed form with a large
bill ; like apoensis of Samar and Mindanao, but paler below and with
a larger bill; like basilanica of Basilan, but with a larger bill, a grayer
crown and a less distinct wash of brown on the breast.

Culmen. — P. p. siquijorensis: cf (6) 18.5-20 (av. 19.2); 9 (5)
18-19 mm. P. p. apoensis: Samar, cf 17, 17; 9 16-17; eastern
Mindanao, & (7) 15.5-17 (av. 16.1); Mt. Malindang, <? (8) 15.5-17
(av. 16.3); 9 (9) 15-17 (av. 16.1) mm. P. p. basilanica: & 16,
16.5; 9 16.5 mm. (type examined).

Range. — Siquijor Island.

16 FIELDIANA: ZOOLOGY, VOLUME 42

Sitta frontalis zamboanga, new subspecies

Type. — Chicago Natural History Museum no. 227,539, from
Napangan, altitude 5,500-6,200 feet, Mt. Malindang, Zamboanga
Peninsula, Mindanao, Philippine Islands. Adult male collected
April 19, 1956, by D. S. Rabor.

Diagnosis. — This, the darkest subspecies, differs from S. f. apo
of eastern Mindanao in being darker, cinnamon brown washed with
lilac on the under parts; differs from S. f. lilacea of Samar in being
darker below and completely lacking blue below the eye and in the
ear coverts; differs from both in the greater amount of lilac wash
on hind neck and f oreback.

Wing.— c? (5) 77-83 (av. 78.9); 9 (3) 71-75 (av. 73) mm.
Range. — Zamboanga Peninsula of western Mindanao and Basilan.

Rhabdornis inornatus zamboanga, new subspecies

Type. — Chicago Natural History Museum no. 228,014, from
Masawan, altitude 3,500-4,500 feet, Mt. Malindang, Zamboanga
Peninsula, Mindanao, Philippine Islands. Adult male collected
April 13, 1956, by D. S. Rabor.

Diagnosis. — Like R. i. alaris of eastern Mindanao but differs in
the duller brown (not warmer ruddy brown) of the upper parts.

Wing.— & (10) 88-94 (av. 90.8); 9 (10) 85-92 (av. 88.4) mm.

Cvlmen.— <? 18-20; 9 17-20 mm.

Range. — Mt. Malindang from 3,500 to 5,500 feet altitude.

Remarks. — This species turns out to be more widespread and
common than was thought. The races are as follows: grandis
Salomonsen, 1953, from Luzon; inornatus Grant, 1896, from Samar;
rabori Rand, 1950, from Negros; alaris Rand, 1948, from eastern
Mindanao; and zamboanga (see above).

Dicaeum anthonyi masawan, new subspecies

Type. — Chicago Natural History Museum no. 228,016, from
Masawan, altitude 3,500-4,500 feet, Mt. Malindang, Zamboanga
Peninsula, Mindanao, Philippine Islands. Adult male collected
March 31, 1956, by D. S. Rabor.

Diagnosis. — Male like D. a. kampalili but gray of breast and
flanks tinged yellow, and abdomen yellowish white; wing slightly
longer; female unknown.

Wing. — d" 57, 57 mm.

RAND AND RABOR: NEW PHILIPPINE BIRDS 17

Culmen. — d" 12, 12 mm.

Range. — Mt. Malindang between 3,500 and 4,500 feet.

Remarks. — Though not an exact intermediate, being closer to
D. a. kampalili, the yellow wash over the gray and white under
parts bridges part of the difference between anthonyi and kampalili.
This and the similarity in size, bill shape and color pattern lead to
treating the three forms as conspecific.

Aethopyga boltoni malindangensis, new subspecies

Type. — Chicago Natural History Museum no. 227,667, from
Gandawan, altitude 4,500-5,500 feet, Mt. Malindang, Zamboanga
Peninsula, Mindanao, Philippine Islands. Adult male collected
April 15, 1956, by D. S. Rabor.

Diagnosis. — Like A. b. boltoni from Mt. Apo and Mt. McKinley
but male with orange of center of breast brighter and more extensive;
more light red in sides of breast; flanks and abdomen brighter
yellow; and more iridescence in forehead and crown. Female differs
in more extensive and brighter orange of lower breast and brighter
yellow flanks and abdomen.

Wing.— c? (6) 51-57 (av. 53.6); 9 (9) 49-52 (av. 51) mm.

Culmen (from base).— d" 22-25; 9 20-21 mm.

Range. — Mt. Malindang from 3,500 to 7,450 feet altitude.

Arachnothera clarae malindangensis, new subspecies

Type. — Chicago Natural History Museum no. 227,696, from
Masawan, Mt. Malindang, Zamboanga Peninsula, Mindanao,
Philippine Islands. Adult male collected May 11, 1956, by D. S.
Rabor.

Diagnosis. — Like A. c. philippinensis of Mt. McKinley, eastern
Mindanao, but differs in having upper parts darker and duller green,
and under parts grayer with less of an olive green wash.

Wing.— <? (5) 86-92 (av. 90); 9 84, 87 mm.

Culmen (from base).— <? (5) 38-41 (av. 39.7); 9 41, 42 mm.

Range. — Mt. Malindang from 3,500 to 4,500 feet altitude.

Remarks. — No races have been recognized in this species but
there are three as follows:

(a) A. c. philippinensis Steere, July 14, 1890, Samar; forehead
naked and heavy wash of green below.

18 FIELDIANA: ZOOLOGY, VOLUME 42

(b) A. c. clarae Blasius, April 15, 1890 (see Jour. f. Orn., 38:
146), Davao; forehead feathered and less of a greenish wash below.

(c) A. c. malindangensis Rand and Rabor; as above.

Hypocryptadius cinnamomeus malindangensis, new sub-
species

Type. — Chicago Natural History Museum no. 227,860, from
Gandawan, altitude 4,500-5,500 feet, Mt. Malindang, Zamboanga
Peninsula, Mindanao, Philippine Islands. Adult male collected
April 15, 1956, by D. S. Rabor.

Diagnosis. — Like H. c. cinnamomeus of Mt. Apo but upper parts
brighter cinnamon rufous; breast tinged with brighter cinnamon;
abdomen and under tail coverts whiter (less grayish).

Wing.— cf (12) 89-96 (av. 92); 9 (12) 89-96 (av. 91.2) mm.

Range. — Mt. Malindang from 3,500 to 7,450 feet altitude.

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