Anas superciliosa
Grey Duck
Mokorā Rere-vao RR
f.ANATIDAE
Ducks
Anas superciliosa
Grey Duck
Mokorā Rere-vao RR
f.ANATIDAE
Ducks
Cook Islands Status Summary
Show Notes
Intl. NamesGrey Duck EN Pacific Black Duck EN Augenbrauenente DE
Local NamesMokorā Rere-vaoRR MokorāMG Mokorā TaetaevaoAT Mokorā VairauMK,MT Mokorā Rau-vaiAK P,?NPL Mokolā VaiTNs Mokorā VaiTNw ToloaPK
Pacific NamesNo Content
Sci. NamesAnas superciliosa (accepted name)
, Anas poecilorhyncha, Anas superciliosa pelewensis
High Tax. Eng.k.Animals, p.Vertebrates, c.Birds, o.Waterfowls, f.Ducks - Bird
High Tax. Latink.ANIMALIA, p.CHORDATA, sp.GNATHOSTOMATA, spc.TETRAPODA, c.AVES, sc.NEOGNATHAE, o.Anseriformes, f.ANATIDAE
Natl. PresencePresent
Sth. PresenceRR+ VMG++AT++MK++MT+++AK+PL+MN-TK-
Nth. PresenceTN+MH-RK-PK+ VNS-SW-
VouchersRR2013
Local OriginNative; Resident
Global RangeNative: Indonesia / Australia - French Polynesia; s. to new Zealand (3 subspecies);
HabitatLand - Lowlands; Aquatic - Freshwater - Brackish, Drains, Lakes, Ponds; Marine - Near-shore - Atoll lagoon, Reef-flat
ThreatenedNo Content
InvasivenessNo Content
BiosecurityNo Content
Medical StatusNo Content
Harmful StatusNo Content
UsesFlesh food
IdentificationDuck to 55cmL. Sexes alike. ADULTS dark brown body and nape with pale throat; head pale with black strips over head, through eye and at base of bill; wings brown above, white beneath, speculum green with black leading edge and black then white rear emore...dge; feet and legs green-brown. NESTING September-December, 6-12 eggs, female incubates ~5 weeks; young can fly at ~8 weeks; breed at one year, typically live 2 years.
Similar SpeciesMallard (Anas platyrhynchos, not presently recorded in the Cmore...ooks) female with less contrasted markings on head (vs. male and female head marked back and cream); both with blue speculum edges banded black-and-white (vs. green, front-edge black, back-edge banded black and white); male with glossy dark green head and neck (vs. as for female); legs and feet orange (vs. green-brown). HYBRIDS have less contrast on face and yellowish-brown legs and feet.
Interest NoteNo Content
Show All Notes
Multimedia & Other Resources
Click on a thumbnail to see the full image and image details.
Vernacular Names
no data available
Threatened
no data available
Invasive/Pest Status
no data available
Biosecurity
Citation Information
McCormack, Gerald (2026) Cook Islands Biodiversity & Ethnobiology Database, Version 2026.03.23 - Cook Islands Natural Heritage Trust, Rarotonga. Online at https://naturalheritage.gov.ck/cibed
Please refer to our use policy.
Saved Species
X of 20
- Save Species