| Kingdoms / Animalia / Craniata / Aves / Anseriformes / Anatidae / Aythya / Species |
| < > Aythya nyroca - Ferruginous pochard (Click photographs/illustrations: full picture & further details) |
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Alternative Names (Synonyms) |
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| White-eyed pochard Ferruginous white-eye Ferruginous pochard Common white-eye White-eyed duck Moorente (German) Fuligule nyroca (French) Milouin nyroca (French) Porrón pardo (Spanish) Pato ojos blancos comun (Spanish) Witoogeend (Dutch) Vitögd dykand (Swedish) Nyroca ferruginea |
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Names for newly-hatched |
Duckling, downy. |
Names for non-breeding males or other colour-phases |
Eclipse |
Species Author |
Debra Bourne |
Major References |
B1, B2, B3, B6, B8, B25, B26, B27. Aviculture references: |
Other References |
B44.9.w1,
B138 W2 |
TAXA Group (where information has been collated for an entire group on a modular basis) |
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Parent Group |
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Specific Needs Group referenced in Management Techniques |
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Aviculture Information |
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Notes |
General information:
Species-specific information:
(B29, B30, B31, B40, B94, B97, B129). Aviornis UK Ringing Scheme suggested average closed ring size: K 10.0mm. (D8). |
Management Techniques |
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External Appearance (Morphology)
Measurement & Weight |
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| Length | 16 inches, 41cm (B3); 38-42cm (B1) | |
| Adult weight | General | 410-650g (B1) |
| Male | 500-650g average 583g (B3); mean 1.3 lbs. (B8) | |
| Female | 410-600g average 520g (B3); mean 1.2 lbs. (B8). | |
| Newly-hatched weight | -- | |
| Growth rate | -- | |
| Adult | Bill | Male | Grey with black nail and paler subterminal line |
| Variations (If present) | Female: Grey with black nail and indistinct paler subterminal line. | ||
| Eyes (Iris) | Male | White. | |
| Variations(If present) | Brown. | ||
| Juvenile | Bill | Grey. | |
| Eyes (Iris) | Grey-brown. | ||
| Adult | Male | Olive grey. |
| Variations (If present) | -- | |
| Juvenile | Blue-grey. | |
| Adult | Male | Head, neck, breast, flanks deep chestnut (flanks slightly paler), abdomen white, undertail coverts white with black line cranially extending down from rump. Upperparts black-brown including tail and uppertail coverts. Wing coverts black-brown, flight feathers white with dark brown tips and outer primaries |
| Variations (If present) | Female: duller,
browner, white throat. Eclipse: Similar to female but redder head and breast. |
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| Juvenile | Similar to female but paler buff feather tipping, and mottled abdomen. | |
Newly-hatched Characteristics |
| General: Upperparts
dark grey-brown, underparts face and markings yellow. Bill: Pale horn. Feet: Dark horn-brown. |
Reproductive Season |
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| Time of year | Begins April/May. |
| No. of Clutches | One brood, re-nests if clutch lost. |
Nest placement and structure |
| In thick vegetation including reedbeds in water. Constructed from reeds, grass and leaves, down-lined. |
Egg clutches |
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| No. of Eggs | Average | 8-10 (B1) |
| Range | 6-14 (B1) | |
| Egg Description | Pale buff, pale brown or yellow-grey. | |
| 25-27 days (B1, B8). |
| Synchronous. |
| 55-60 days (B1); 50-60 days (B8). |
Sexual Maturity |
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| Males | One year old. |
| Females | One year old. |
Feeding Behaviour |
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| Adults | In shallow water: dive, head-dip, up-end, and dabble. |
| Newly-hatched | -- |
Parental Behaviour |
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| Nest-building | Solitary nests or in loose groups, built by female, |
| Incubation | By female. |
| Newly-hatched | Tended by female, brooded at night initially. |
| Juveniles | Independent by fledging time. |
Social Behaviour |
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| Intra-specific | Mainly found singly or in small groups |
| Inter-specific | -- |
Sexual Behaviour |
| Seasonal pair bond, male leaves during incubation. |
Predation in Wild |
| -- |
| -- | |
| Circadian | Feed mainly nocturnally. |
| Seeds, green parts and roots of aquatic plants, pus aquatic invertebrates, small fish and amphibians. |
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Distribution and Movement (Migration etc.) |
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| Normal | Fragmented, western Europe east to western Mongolia, also isolated populations from Liberia eastward to north-east Pakistan. Migrate to Mediterranean (local population sedentary), sub-Saharan Africa, Caspian Sea (south shores), Middle East, Indian sub-continent, south-east Asia. |
| Occasional and Accidental | Britain (small numbers each year), Ireland, Norway, Denmark, Sweden, Finland, Belgium, Canary Islands, Cape Verde Islands. |
| Introduced | -- |
| Breeding: marshes and shallow pools and lakes with abundant vegetation (fringe and emergent). Larger lakes, lagoons and coastal marshes in winter. |
Intraspecific variation |
| -- |
Conservation Status |
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| Wild Population - (Importance) |
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| CITES listing | CITES III in Ghana (B1). |
| Red-data book listing | Vulnerable (W2). |
| Threats | Habitat destruction, hunting (B1, B44.9.w1). |
Captive Populations |
| Common in European collections, rarer in American collections (B8). |
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