A. J. C. Dubois, 1902,
Saipan, Northern Marianas.
Usually considered conspecific with †Z. conspicillatus, but differs in its narrower white loral line but slightly more prominent black line below it from bill-base to eye (1); green vs greyish ear-coverts (1); pale buffish-yellow vs citron-yellow underparts (1); darker bill (ns); smaller size (effect size for male bill –2.57, score 2); and more extensive vocabulary (ns), including several high-pitched call notes unrecorded in conspicillatus (2) and lacking latter’s distinctly buzzy notes (2)#R. Monotypic.
N Northern Mariana Is (Saipan, Tinian and Aguijan).
Food and feeding
Status and conservation
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