Arundinax minutus Swinhoe, Ibis (1860), 52.
Cettia minuta Seebohm, Cat. Birds Brit. Mus. (1881), 5, 141.
Horornis minuta Sharpe, Hand-List (1903), 4, 236; McGregor,
Bull. Phil. Mus. (1904), 4, 30; McGregor and Worcester, Hand-List
(1906), 91.
Calayan (McGregor). Hainan, Askold Island, southern China.
Adult.--This species differs from H. canturians in being much smaller,
and the tail-feathers appear to be less pointed. Length, about 145. A
male from Calayan measures: Wing, 62; tail, 61; culmen from base,
14; bill from nostril, 9; tarsus, 22. A female, wing, 62; tail,
60; culmen from base, 13; bill from nostril, 8; tarsus, 22. Exposed
portion of first primary little more than one-half of second; fourth
and fifth equal and longest.
In the Philippine Islands the little bush warbler is known only as
a winter visitant to Calayan Island.