Family Old World Warblers (Sylviidae)

Critically Endangered

Nightingale Reed-warbler (Acrocephalus luscinius)


French: Rousserolle rossignol German: Sprosserrohrsänger Spanish: Carricero Ruiseñor

Thryothorus luscinius

Quoy and Gaimard

, 1830,



Sometimes treated as conspecific with A. syrinx, and sometimes also with A. rehsei, but differs from both in distinctly larger size, much longer bill, and song. Dark race yamashinae, from Pagan I (NC Northern Marianas), extinct; described race astrolabii, of uncertain origin but possibly from Yap (in W Caroline Is), also extinct. Two extant subspecies recognized.

Subspecies and Distribution
  • A. l. luscinius (Quoy & Gaimard, 1830) – Northern Mariana Is (Alamagan, Saipan).
  • A. l. nijoi (Yamashina, 1940) – Aguijan (S Northern Marianas).
  • Descriptive notes

    18 cm; male average 35·9g, female average 32 g. Relatively large reed-warbler with very long bill, head plumage often dishevelled. Nominate race has yellow supercilium... read more


    Song loud, melodic, varied and complex, of whistles, warbles and trills, long sustained, may... read more


    Mosaics of elephant grass and tangan-tangan (Leucaena), also mangroves (Bruguiera... read more

    Food and feeding

    Information sparse. Diet probably mostly insects, lizards, also spiders (Araneae) and snails. Forages mainly on ground; gleans... read more


    Peak periods in Jan–Mar and Jul–Sept. Monogamous. Nest built by female, a rather deep cup, two types distinguished, one tightly... read more



    Status and conservation

    CRITICALLY ENDANGERED. Restricted-range species: present in Mariana Islands EBA. Current population estimated at c. 3700 individuals, all of nominate race: 946 on Alamagan in... read more

    Recommended citation

    Dyrcz, A. & Sharpe, C.J. (2017). Nightingale Reed-warbler (Acrocephalus luscinius). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from on 26 March 2017).